wiki.occupyboston.org - User contributions [en]

https://wiki.occupyboston.org/wiki/api.php?action=feedcontributions&feedformat=atom&user=Ted+Moallem wiki.occupyboston.org - User contributions [en] 2026-05-25T11:43:46Z User contributions MediaWiki 1.41.0 https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7625 Pedal Power 2011-11-29T22:18:16Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/29/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u>&nbsp;'''<br /> <br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of flat steel bar'''&nbsp;</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x'''<u>'''5"-6" long fully-threaded bolts, size 3/4-10 (standard)'''</u><br /> <br /> *bolt head type does not matter<br /> *Alternatively, can use&nbsp;5"-6" lengths of 3/4-10&nbsp;threaded rod&nbsp;<br /> <br /> '''FOUR (4) x <u>3/4-10&nbsp;Hex Nuts</u>'''<br /> <br /> <br /> <br /> '''''TWO (2)&nbsp;x ''<u>1/2 in. PVC Sch. 40 Pressure Slip x FIPT Female Adapter&nbsp;</u>'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search]&nbsp;<br /> <br /> '''TWO (2)&nbsp;x <u>Hose clamps</u>&nbsp; [OPTIONAL]'''<br /> <br /> *'''Hose clamps are optional --- to reinforce PVC adapter cups, if desired'''<br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> == Construction ==<br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> '''Basic A-frame configuration, depicted without nut/bolt fasteners.'''<br /> <br /> ----<br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> *On one face of each rear leg piece, mark distances&nbsp;of 1.5" and 2.5" from bottom edge, centered along the width. &nbsp;Drill two through-holes, slightly larger than fastening bolt diameter.<br /> *On perpendicular face of each rear leg piece, mark distances of 4", 16.5", and 18" from bottom edge, centered along the width. &nbsp;<br /> *At 4" and 16.5" marks, drill through-holes, slightly larger than bolt diameter.<br /> *At 18" mark, drill though-hole of approximately 0.75" diameter (to fit size 3/4-10 bolt or threaded rod).<br /> <br /> ----<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> *If using angle steel,&nbsp;note that hole patterns of the two front legs are mirror images of one another.<br /> *On one face of each front leg piece, mark distance of 1.5" from bottom edge, centered along the inner-face width. &nbsp;Drill through-hole slightly larger than fastening bolt diameter.<br /> *On perpendicular face of each front leg piece, mark distances of 3" and 18" from bottom edge, centered along the inner-face width. &nbsp;Drill through-holes slightly larger than fastening bolt diameter.<br /> <br /> <br /> <br /> ----<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png<br /> <br /> <br /> <br /> <br /> <br /> == Operation ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7624 Pedal Power 2011-11-29T20:59:19Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/29/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u>&nbsp;'''<br /> <br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of flat steel bar'''&nbsp;</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x'''<u>'''5"-6" long fully-threaded bolts, size 3/4-10 (standard)'''</u><br /> <br /> *bolt head type does not matter<br /> *Alternatively, can use&nbsp;5"-6" lengths of 3/4-10&nbsp;threaded rod&nbsp;<br /> <br /> '''FOUR (4) x <u>3/4-10&nbsp;Hex Nuts</u>'''<br /> <br /> <br /> <br /> '''''TWO (2)&nbsp;x ''<u>1/2 in. PVC Sch. 40 Pressure Slip x FIPT Female Adapter&nbsp;</u>'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search]&nbsp;<br /> <br /> '''TWO (2)&nbsp;x <u>Hose clamps</u>&nbsp; [OPTIONAL]'''<br /> <br /> *'''Hose clamps are optional --- to reinforce PVC adapter cups, if desired'''<br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> == Construction ==<br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> '''Basic A-frame configuration, depicted without nut/bolt fasteners.'''<br /> <br /> ----<br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> *On one face of each rear leg piece, mark distances&nbsp;of 1.5" and 2.5" from bottom edge, centered along the width. &nbsp;Drill two through-holes, slightly larger than fastening bolt diameter.<br /> *On perpendicular face of each rear leg piece, mark distances of 4", 16.5", and 18" from bottom edge, centered along the width. &nbsp;<br /> *At 4" and 16.5" marks, drill through-holes, slightly larger than bolt diameter.<br /> *At 18" mark, drill though-hole of approximately 0.75" diameter (to fit size 3/4-10 bolt or threaded rod).<br /> <br /> ----<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> *If using angle steel,&nbsp;note that hole patterns of the two front legs are mirror images of one another.<br /> *On one face of each front leg piece, mark distance of 1.5" from bottom edge, centered along the inner-face width. &nbsp;Drill through-hole slightly larger than fastening bolt diameter.<br /> *On perpendicular face of each front leg piece, mark distances of 3" and 18" from bottom edge, centered along the inner-face width. &nbsp;Drill through-holes slightly larger than fastening bolt diameter.<br /> <br /> <br /> <br /> ----<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7623 Pedal Power 2011-11-29T20:49:26Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/28/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u>&nbsp;'''<br /> <br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of flat steel bar'''&nbsp;</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x'''<u>'''5"-6" long fully-threaded bolts, size 3/4-10 (standard)'''</u><br /> <br /> *bolt head type does not matter<br /> *Alternatively, can use&nbsp;5"-6" lengths of 3/4-10&nbsp;threaded rod&nbsp;<br /> <br /> '''FOUR (4) x <u>3/4-10&nbsp;Hex Nuts</u>'''<br /> <br /> <br /> <br /> '''''TWO (2)&nbsp;x ''<u>1/2 in. PVC Sch. 40 Pressure Slip x FIPT Female Adapter&nbsp;</u>'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search]&nbsp;<br /> <br /> '''TWO (2)&nbsp;x <u>Hose clamps</u>&nbsp; [OPTIONAL]'''<br /> <br /> *'''Hose clamps are optional --- to reinforce PVC adapter cups, if desired'''<br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> '''Basic A-frame configuration, depicted without nut/bolt fasteners.'''<br /> <br /> ----<br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> *On one face of each rear leg piece, mark distances&nbsp;of 1.5" and 2.5" from bottom edge, centered along the width. &nbsp;Drill two through-holes, slightly larger than fastening bolt diameter.<br /> *On perpendicular face of each rear leg piece, mark distances of 4", 16.5", and 18" from bottom edge, centered along the width. &nbsp;<br /> *At 4" and 16.5" marks, drill through-holes, slightly larger than bolt diameter.<br /> *At 18" mark, drill though-hole of approximately 0.75" diameter (to fit size 3/4-10 bolt or threaded rod).<br /> <br /> ----<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> *If using angle steel,&nbsp;note that hole patterns of the two front legs are mirror images of one another.<br /> *On one face of each front leg piece, mark distance of 1.5" from bottom edge, centered along the inner-face width. &nbsp;Drill through-hole slightly larger than fastening bolt diameter.<br /> *On perpendicular face of each front leg piece, mark distances of 3" and 18" from bottom edge, centered along the inner-face width. &nbsp;Drill through-holes slightly larger than fastening bolt diameter.<br /> <br /> <br /> <br /> ----<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7621 Pedal Power 2011-11-29T20:35:33Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/28/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u>&nbsp;'''<br /> <br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of flat steel bar'''&nbsp;</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x'''<u>'''5"-6" long fully-threaded bolts, size 3/4-10 (standard)'''</u><br /> <br /> *bolt head type does not matter<br /> *Alternatively, can use&nbsp;5"-6" lengths of 3/4-10&nbsp;threaded rod&nbsp;<br /> <br /> '''FOUR (4) x <u>3/4-10&nbsp;Hex Nuts</u>'''<br /> <br /> <br /> <br /> '''''TWO (2)&nbsp;x ''<u>1/2 in. PVC Sch. 40 Pressure Slip x FIPT Female Adapter&nbsp;</u>'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search]&nbsp;<br /> <br /> '''TWO (2)&nbsp;x <u>Hose clamps</u>&nbsp; [OPTIONAL]'''<br /> <br /> *'''Hose clamps are optional --- to reinforce PVC adapter cups, if desired'''<br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> '''Figure 1. &nbsp;Basic A-frame configuration, depicted without nut/bolt fasteners.'''<br /> <br /> ----<br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> *On one face of each rear leg piece, mark distances&nbsp;of 1.5" and 2.5" from bottom edge, centered along the width. &nbsp;Drill two through-holes, slightly larger than fastening bolt diameter.<br /> *On perpendicular face of each rear leg piece, mark distances of 4", 16.5", and 18" from bottom edge, centered along the width. &nbsp;<br /> *At 4" and 16.5" marks, drill through-holes, slightly larger than bolt diameter.<br /> *At 18" mark, drill though-hole of approximately 0.75" diameter (to fit size 3/4-10 bolt or threaded rod).<br /> <br /> ----<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> <br /> <br /> ----<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7619 Pedal Power 2011-11-29T20:14:11Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/28/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u>&nbsp;'''<br /> <br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of flat steel bar'''&nbsp;</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x'''<u>'''5"-6" long fully-threaded bolts, size 3/4-10 (standard)'''</u><br /> <br /> *bolt head type does not matter<br /> *Alternatively, can use&nbsp;5"-6" lengths of 3/4-10&nbsp;threaded rod&nbsp;<br /> <br /> '''FOUR (4) x <u>3/4-10&nbsp;Hex Nuts</u>'''<br /> <br /> <br /> <br /> '''''TWO (2)&nbsp;x ''<u>1/2 in. PVC Sch. 40 Pressure Slip x FIPT Female Adapter&nbsp;</u>'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search]&nbsp;<br /> <br /> '''TWO (2)&nbsp;x <u>Hose clamps</u>&nbsp; [OPTIONAL]'''<br /> <br /> *'''Hose clamps are optional --- to reinforce PVC adapter cups, if desired'''<br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7618 Pedal Power 2011-11-29T20:13:06Z

<p>Ted Moallem: /* Parts/Materials List */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/28/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u>&nbsp;'''<br /> <br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of flat steel bar'''&nbsp;</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x'''<u>'''5"-6" long fully-threaded bolts, size 3/4-10 (standard)'''</u><br /> <br /> *bolt head type does not matter<br /> *Alternatively, can use&nbsp;5"-6" lengths of 3/4-10&nbsp;threaded rod&nbsp;<br /> <br /> '''FOUR (4) x <u>3/4-10&nbsp;Hex Nuts</u>'''<br /> <br /> <br /> <br /> '''TWO (2)&nbsp;x''''''<u>&nbsp;1/2 in. PVC Sch. 40 Pressure Slip x FIPT Female Adapter&nbsp;</u>'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search http://www.homedepot.com/h_d1/N-5yc1v/R-100087245/h_d2/ProductDisplay?selectedCatgry=SEARCH+ALL&jspStoreDir=hdus&catalogId=10053&navFlow=3&keyword=435-005&Ntpc=1&langId=-1&Nu=P_PARENT_ID&storeId=10051&Ntpr=1&ddkey=Search]&nbsp;<br /> <br /> '''TWO (2)&nbsp;x <u>Hose clamps</u>&nbsp; [OPTIONAL]'''<br /> <br /> *'''Hose clamps are optional --- to reinforce PVC adapter cups, if desired'''<br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202309385/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7602 Pedal Power 2011-11-29T08:25:10Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/28/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u>&nbsp;'''<br /> <br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of flat steel bar'''&nbsp;</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183541/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7601 Pedal Power 2011-11-29T08:12:49Z

<p>Ted Moallem: /* Parts/Materials List */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/28/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183567/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u>&nbsp;'''<br /> <br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7600 Pedal Power 2011-11-29T08:04:59Z

<p>Ted Moallem: /* Construction */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/28/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7598 Pedal Power 2011-11-29T06:55:30Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/28/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> <br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png<br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7597 Pedal Power 2011-11-29T06:55:07Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/28/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> <br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png<br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7596 Pedal Power 2011-11-29T06:44:34Z

<p>Ted Moallem: /* Construction */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> <br /> <br /> https://lh3.googleusercontent.com/-83bUPHfVsQo/TtR_DKo-MYI/AAAAAAAAAaw/drxq-OJgBk4/s550/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png<br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7595 Pedal Power 2011-11-29T06:41:59Z

<p>Ted Moallem: /* Construction */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> https://lh3.googleusercontent.com/-QW_5GM64jMs/TtR2peO5mjI/AAAAAAAAAaI/EbpmyFFMs-w/s500/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-uSEy3Wg2K1g/TtR-oJgzGiI/AAAAAAAAAao/fjkx256U198/s500/Cross-pieces1_labeled_small.png<br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7594 Pedal Power 2011-11-29T06:39:34Z

<p>Ted Moallem: /* Construction */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> https://lh3.googleusercontent.com/-QW_5GM64jMs/TtR2peO5mjI/AAAAAAAAAaI/EbpmyFFMs-w/s500/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh6.googleusercontent.com/-G4jd_cIsizI/TtR-ESewDDI/AAAAAAAAAag/v7VmCawGhDE/s500/Cross-pieces1_labeled_small.png<br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7593 Pedal Power 2011-11-29T06:26:49Z

<p>Ted Moallem: /* Construction */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> https://lh3.googleusercontent.com/-QW_5GM64jMs/TtR2peO5mjI/AAAAAAAAAaI/EbpmyFFMs-w/s500/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> <br /> <br /> https://lh6.googleusercontent.com/-M0YutxOAK3s/TtR7D7fCEfI/AAAAAAAAAaY/Jdd2c0nbg6c/s700/PedalGen_Assem1-1_crop_labeled_small.png<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7591 Pedal Power 2011-11-29T06:25:10Z

<p>Ted Moallem: /* Construction */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> https://lh3.googleusercontent.com/-QW_5GM64jMs/TtR2peO5mjI/AAAAAAAAAaI/EbpmyFFMs-w/s500/Rear-legs1_labeled_small.png<br /> <br /> https://lh4.googleusercontent.com/-cUNN0LFpU0g/TtR6nMlXC_I/AAAAAAAAAaQ/Gzwcfl9tY3Q/s500/Front-legs1_labeled_small.png<br /> <br /> https://lh6.googleusercontent.com/-mNFHTFCck6w/TtRu5m47qoI/AAAAAAAAAaE/SrGARi8TAh4/s550/image.jpg<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7590 Pedal Power 2011-11-29T06:08:29Z

<p>Ted Moallem: /* Construction */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> https://lh3.googleusercontent.com/-QW_5GM64jMs/TtR2peO5mjI/AAAAAAAAAaI/EbpmyFFMs-w/s500/Rear-legs1_labeled_small.png<br /> <br /> <br /> <br /> https://lh6.googleusercontent.com/-mNFHTFCck6w/TtRu5m47qoI/AAAAAAAAAaE/SrGARi8TAh4/s550/image.jpg<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7589 Pedal Power 2011-11-29T05:42:21Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> <br /> https://lh6.googleusercontent.com/-mNFHTFCck6w/TtRu5m47qoI/AAAAAAAAAaE/SrGARi8TAh4/s550/image.jpg<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7588 Pedal Power 2011-11-29T05:10:33Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> https://lh4.googleusercontent.com/-G2ub567CSx4/TtRot18VxhI/AAAAAAAAAZ8/73BHo7gZy2o/s943/PedalGen_Assem1-1_crop_labeled.png<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7587 Pedal Power 2011-11-29T04:53:34Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> https://lh3.googleusercontent.com/-HIHJIeavkvI/TtRh8-CZCOI/AAAAAAAAAZ4/60AnAf7Y7k4/s943/PedalGen_Assem1-1_crop.png<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7586 Pedal Power 2011-11-29T04:47:31Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> == <br/> ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7585 Pedal Power 2011-11-29T04:44:46Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==<br /> <br /> == https://lh4.googleusercontent.com/-HIHJIeavkvI/TtRh8-CZCOI/AAAAAAAAAZo/gMZU46S-3gc/s943/PedalGen_Assem1-1_crop.png ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7584 Pedal Power 2011-11-29T04:37:36Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear-Cross piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front-Cross piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back-Cross pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7583 Pedal Power 2011-11-29T04:31:43Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear Cross-piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Cross-piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back Cross-pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;'''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)&nbsp;x <u>6" lengths of 3/4" diameter (imperial size 3/4) threaded rod</u>&nbsp;'''<br /> <br /> '''FOUR (4) x <u>Hex nuts (fit to your 3/4" diameter threaded rod)</u>'''<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7582 Pedal Power 2011-11-29T04:28:28Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear Cross-piece:<br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs:<br /> <br /> '''''TWO (2) x''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Cross-piece:<br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back Cross-pieces:<br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;''''''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7581 Pedal Power 2011-11-29T04:27:15Z

<p>Ted Moallem: /* Parts/Materials List */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear Legs: &nbsp;<br /> <br /> '''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> <br /> <br /> Rear Cross-piece: <br /> <br /> '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Legs: <br /> <br /> '''TWO (2) x'''''&nbsp;&nbsp;'''<u>20" lengths of 1-inch angle steel</u> '''&nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front Cross-piece: <br /> <br /> '''ONE (1) x'''&nbsp;<u>'''16" length of 1" x 1" rectangular steel tubing'''</u>&nbsp;<br /> <br /> *For extra stability, lengthen FRONT-CROSS piece to between 20"-30", and add rubber feet at either end<br /> <br /> <br /> <br /> Front-Back Cross-pieces: <br /> <br /> '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> Nuts and Bolts: '''&nbsp;'''<br /> <br /> *'''Use bolts sized 10mm to 12mm (standard sizes 3/8, 7/16, or 1/2),&nbsp;''''''with correspondingly sized nuts, unless otherwise specified.'''<br /> *'''Drill holes to slightly larger diameter than that of traversing bolt.'''<br/><br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7580 Pedal Power 2011-11-29T03:56:24Z

<p>Ted Moallem: /* Contact Info */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;"></p><p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear legs: &nbsp;'''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> Rear cross-piece(s): '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" (cross-section) rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front legs: '''TWO (2) x'''''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> Front cross-piece: '''ONE (1) x'''&nbsp;16" (minimum, up to 30" maximum) long rectangular steel tubing, cross-section 1" x 1" (Note: If adding optional rubber feet, use longer front cross-piece for wider, more stable stance.)<br /> <br /> Front-back connectors: '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> <br/><span style="background-color:#ffff00;">[SPECIFY FASTENER HARDWARE!!! ]</span><br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7483 Pedal Power 2011-11-27T03:19:59Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> <br /> <br /> '''<span style="color:#ff0000;">11/26/11: &nbsp;UPDATE IN PROGRESS</span>'''<br /> <br /> <br /> <br /> __TOC__<br /> <br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear legs: &nbsp;'''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> Rear cross-piece(s): '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" (cross-section) rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front legs: '''TWO (2) x'''''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> Front cross-piece: '''ONE (1) x'''&nbsp;16" (minimum, up to 30" maximum) long rectangular steel tubing, cross-section 1" x 1" (Note: If adding optional rubber feet, use longer front cross-piece for wider, more stable stance.)<br /> <br /> Front-back connectors: '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> <br/><span style="background-color:#ffff00;">[SPECIFY FASTENER HARDWARE!!! ]</span><br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7482 Pedal Power 2011-11-27T03:18:34Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> __TOC__<br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br/>Rear legs: &nbsp;'''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> Rear cross-piece(s): '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" (cross-section) rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front legs: '''TWO (2) x'''''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> Front cross-piece: '''ONE (1) x'''&nbsp;16" (minimum, up to 30" maximum) long rectangular steel tubing, cross-section 1" x 1" (Note: If adding optional rubber feet, use longer front cross-piece for wider, more stable stance.)<br /> <br /> Front-back connectors: '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> <br/><span style="background-color:#ffff00;">[SPECIFY FASTENER HARDWARE!!! ]</span><br /> <br /> <br/>____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Rear-wheel (skewer) supports:''</span></p><br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Generator and mounting assembly:''</span></p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> <span style="background-color:#ffff00;">[SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]</span><br /> <br /> <span style="background-color:#ffff00;">[INCLUDE EXAMPLE LINKS!!!]</span><br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;"><span style="font-size:larger;">''Electronics:''</span></p><br /> '''''ONE (1) x&nbsp;'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> '''Two (2) x <u>aluminum heat sinks</u>'''<br /> <br /> *Can use scrap aluminum bar or thick sheeting, so long as there is a flat surface for mounting to components<br /> *'''IMPORTANT''': &nbsp;Depending on circuit configuration, it may be necessary to connect diode and voltage regulator to <u>separate, non-contacting heat sinks</u>. &nbsp;(Remember, aluminum conducts electricity!)<br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7481 Pedal Power 2011-11-27T02:29:08Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> __TOC__<br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> <br /> <br /> Rear legs: &nbsp;'''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> Rear cross-piece(s): '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" (cross-section) rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front legs: '''TWO (2) x''''''''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;''''''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *<br /> <br /> Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> Front cross-piece: '''ONE (1) x'''&nbsp;16" (minimum, up to 30" maximum) long rectangular steel tubing, cross-section 1" x 1" (Note: If adding optional rubber feet, use longer front cross-piece for wider, more stable stance.)<br /> <br /> Front-back connectors: '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> <br/>[SPECIFY FASTENER HARDWARE!!! ]<br /> <br /> <br/>____________________<br /> <p style="text-align: center;">''Rear-wheel (skewer) supports:''</p><br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <p style="text-align: center;">''Generator and mounting assembly:''</p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> [SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]<br /> <br /> [INCLUDE EXAMPLE LINKS!!!]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;">''Electronics:''</p><br /> '''''ONE (1) x'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> <br /> <br /> <br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7480 Pedal Power 2011-11-27T02:27:27Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> __TOC__<br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> &lt;p style="text-align: center; "</p&gt;<br /> <br /> Rear legs: &nbsp;'''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> Rear cross-piece(s): '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" (cross-section) rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front legs: '''TWO (2) x'''''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *<br /> <br /> Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> Front cross-piece: '''ONE (1) x'''&nbsp;16" (minimum, up to 30" maximum) long rectangular steel tubing, cross-section 1" x 1" (Note: If adding optional rubber feet, use longer front cross-piece for wider, more stable stance.)<br /> <br /> Front-back connectors: '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> <br/>[SPECIFY FASTENER HARDWARE!!! ]<br /> <br /> <br/>____________________<br /> <p style="text-align: center;">''Rear-wheel (skewer) supports:''</p><br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <p style="text-align: center;">''Generator and mounting assembly:''</p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> [SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]<br /> <br /> [INCLUDE EXAMPLE LINKS!!!]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;">''Electronics:''</p><br /> '''''ONE (1) x'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> *Note: Appropriate adjustment of maximum output voltage commonly requires several additional electronic components, as specified in voltage regulator datasheet. &nbsp;For the LD1084V regulator used below, the required components are two capacitors (both 10 uF) and two resistors (120&nbsp;Ω&nbsp;and 1.2 kΩ)<br /> <br /> <br /> <br /> <br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7479 Pedal Power 2011-11-27T02:09:33Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> __TOC__<br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> &lt;p style="text-align: center; "</p&gt;<br /> <br /> Rear legs: &nbsp;'''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> Rear cross-piece(s): '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" (cross-section) rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front legs: '''TWO (2) x'''''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *<br /> <br /> Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> Front cross-piece: '''ONE (1) x'''&nbsp;16" (minimum, up to 30" maximum) long rectangular steel tubing, cross-section 1" x 1" (Note: If adding optional rubber feet, use longer front cross-piece for wider, more stable stance.)<br /> <br /> Front-back connectors: '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> <br/>[SPECIFY FASTENER HARDWARE!!! ]<br /> <br /> <br/>____________________<br /> <p style="text-align: center;">''Rear-wheel (skewer) supports:''</p><br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <p style="text-align: center;">''Generator and mounting assembly:''</p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> [SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]<br /> <br /> [INCLUDE EXAMPLE LINKS!!!]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;">''Electronics:''</p><br /> '''''ONE (1) x'''''<b><u>low-voltage&nbsp;schottky&nbsp;diode</u></b><br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g. (alt),&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''''ONE (1) x&nbsp;'''''<b><u>adjustable positive voltage regulator</u></b><br /> <br /> *e.g.,&nbsp;5-Amp&nbsp;low dropout (LDO) linear voltage regulator:&nbsp;[http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183 http://search.digikey.com/us/en/products/LD1084V/497-3413-5-ND/669183]&nbsp;&nbsp;[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00003086.pdf [LD1084V&nbsp;Datasheet]]&nbsp;<br /> *e.g. (alt), 7.5-Amp LDO linear voltage regulator: &nbsp;[http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922 http://search.digikey.com/us/en/products/LT1083CP%23PBF/LT1083CP%23PBF-ND/888922]&nbsp;[http://cds.linear.com/docs/Datasheet/108345fg.pdf [LT1083 Datasheet]]<br /> <br /> <br /> <br /> <br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7478 Pedal Power 2011-11-27T01:53:09Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> __TOC__<br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: [mailto:pedalpower@mit.edu?subject=OB%20PedalPower%20Documentation pedalpower@mit.edu]<br /> <br /> List admin: [mailto:moallem@mit.edu?subject=OB%20PedalPower%20Documentation moallem@mit.edu]<br /> <p style="text-align: center;">(** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)</p><br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> &lt;p style="text-align: center; "</p&gt;<br /> <br /> Rear legs: &nbsp;'''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> Rear cross-piece(s): '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" (cross-section) rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front legs: '''TWO (2) x'''''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *<br /> <br /> Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> Front cross-piece: '''ONE (1) x'''&nbsp;16" (minimum, up to 30" maximum) long rectangular steel tubing, cross-section 1" x 1" (Note: If adding optional rubber feet, use longer front cross-piece for wider, more stable stance.)<br /> <br /> Front-back connectors: '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> <br/>[SPECIFY FASTENER HARDWARE!!! ]<br /> <br /> <br/>____________________<br /> <p style="text-align: center;">''Rear-wheel (skewer) supports:''</p><br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <p style="text-align: center;">''Generator and mounting assembly:''</p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> [SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]<br /> <br /> [INCLUDE EXAMPLE LINKS!!!]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;">''Electronics:''</p><br /> '''ONE (1) x ''''''<u>low-voltage&nbsp;schottky&nbsp;diode</u>'''<br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''ONE (1) x&nbsp;''''''<u>adjustable voltage regulator</u>'''<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> <br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7477 Pedal Power 2011-11-27T01:49:50Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> __TOC__<br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: pedalpower@mit.edu<br /> <br /> List admin: moallem@mit.edu <br /> <br /> (** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)<br /> <br /> <br /> <br /> == Parts/Materials List ==<br /> <p style="text-align: center;">''<span style="font-size:larger;">"A-frame" bicycle stand</span>''</p><br /> &lt;p style="text-align: center; "</p&gt;<br /> <br /> Rear legs: &nbsp;'''TWO (2) x'''&nbsp;<u>'''20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing'''</u><br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> Rear cross-piece(s): '''TWO (2) x'''&nbsp;'''<u>12" lengths of&nbsp;1" x 1" (cross-section) rectangular steel tubing</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front legs: '''TWO (2) x'''''&nbsp;&nbsp;<u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *<br /> <br /> Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> Front cross-piece: '''ONE (1) x'''&nbsp;16" (minimum, up to 30" maximum) long rectangular steel tubing, cross-section 1" x 1" (Note: If adding optional rubber feet, use longer front cross-piece for wider, more stable stance.)<br /> <br /> Front-back connectors: '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> <br/>[SPECIFY FASTENER HARDWARE!!! ]<br /> <br /> <br/>____________________<br /> <p style="text-align: center;">''Rear-wheel (skewer) supports:''</p><br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <p style="text-align: center;">''Generator and mounting assembly:''</p><br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> [SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]<br /> <br /> [INCLUDE EXAMPLE LINKS!!!]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <p style="text-align: center;">''Electronics:''</p><br /> '''ONE (1) x ''''''<u>low-voltage&nbsp;schottky&nbsp;diode</u>'''<br /> <br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476 http://search.digikey.com/us/en/products/SR1045-TP/SR1045-TPMSCT-ND/2334476]<br /> *e.g.,&nbsp;[http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588 http://search.digikey.com/us/en/products/MBR1645G/MBR1645GOS-ND/918588]<br /> *Note: Regular diode will work, but&nbsp;schottky diode minimizes power loss&nbsp;<br /> <br /> <br/>'''ONE (1) x&nbsp;''''''<u>adjustable voltage regulator</u>'''<br /> <br /> *e.g.,&nbsp;<br /> <br /> <br /> <br /> <br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7476 Pedal Power 2011-11-27T01:29:13Z

<p>Ted Moallem: /* Parts/Materials List */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> __TOC__<br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: pedalpower@mit.edu<br /> <br /> List admin: moallem@mit.edu <br /> <br /> (** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)<br /> <br /> <br /> <br /> == Parts/Materials List ==<br /> <br /> ''"A-frame" bicycle stand:''<br /> <br /> Rear legs: &nbsp;'''TWO (2) x'''&nbsp;20" lengths of&nbsp;1" x 1" (cross-section)&nbsp;rectangular steel tubing<br /> <br /> *e.g.,&nbsp;<br /> *<br /> <br /> Alternatively, can use up to 2" x 1"&nbsp;&nbsp;(cross-section)&nbsp;rectangular steel tubingfor added stability<br /> <br /> Rear cross-piece(s): '''TWO (2) x'''&nbsp;12" lengths of&nbsp;1" x 1" (cross-section) rectangular steel tubing &nbsp;<br /> <br /> *e.g.,&nbsp;<br /> *Alternatively, can use single piece of&nbsp;2" x 1"&nbsp;rectangular steel tubing<br /> <br /> <br /> <br /> Front legs: '''TWO (2) x''''''&nbsp; <u>20" lengths of 1-inch angle steel</u> &nbsp;'''<br /> <br /> *e.g.,&nbsp;[http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 http://www.homedepot.com/h_d1/N-5yc1v/R-202183502/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053]<br /> *<br /> <br /> Alternatively, can use 20" lengths of&nbsp;1" x 1"&nbsp;rectangular steel tubing<br /> <br /> Front cross-piece: '''ONE (1) x'''&nbsp;16" (minimum, up to 30" maximum) long rectangular steel tubing, cross-section 1" x 1" (Note: If adding optional rubber feet, use longer front cross-piece for wider, more stable stance.)<br /> <br /> Front-back connectors: '''TWO (2) x'''&nbsp;20" long steel flats<br /> <br /> <br/>[SPECIFY FASTENER HARDWARE!!! ]<br /> <br /> <br/>____________________<br /> <br /> ''Rear-wheel (skewer) supports:''<br /> <br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <br /> ''Generator mounting:''<br /> <br /> '''ONE (1) x'''&nbsp;24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1) x'''&nbsp;heavy-duty door hinge<br /> <br /> '''ONE (1) x'''&nbsp;strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2) x'''&nbsp;mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1) x'''&nbsp;roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1) x'''&nbsp;roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> [SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]<br /> <br /> [INCLUDE EXAMPLE LINKS!!!]<br /> <br /> <br /> <br /> <br /> <br /> ____________________<br /> <br /> ''Electronics:'' diode<br /> <div><br/></div><br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7465 Pedal Power 2011-11-26T09:01:47Z

<p>Ted Moallem: /* Parts/Materials List */</p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> __TOC__<br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: pedalpower@mit.edu<br /> <br /> List admin: moallem@mit.edu <br /> <br /> (** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)<br /> <br /> <br /> <br /> == Parts/Materials List ==<br /> <br /> ''"A-frame" bicycle stand:''<br /> <br /> Rear legs: &nbsp;'''TWO (2)&nbsp;'''&nbsp;20" long rectangular steel tubing, cross-section at least 1" x 1" (up to 2" x 1" for added stability)<br /> <br /> Rear cross-piece: '''ONE (1) '''x 12" long rectangular steel tubing, cross-section at least 1" x 1" (up to 2" x 1" for added stability)<br /> <br /> Front legs: '''TWO (2)''' x 20" long rectangular steel tubing, cross-section 1" x 1" (Note: can alternatively use 20" lengths of L-bracket)<br /> <br /> Front cross-piece: '''ONE (1) '''x 16" (minimum, up to 30" maximum) long rectangular steel tubing, cross-section 1" x 1" (Note: If adding optional rubber feet, use longer front cross-piece for wider, more stable stance.)<br /> <br /> Front-back connectors: '''TWO (2) '''x 20" long steel flats<br /> <br /> <br/>[SPECIFY FASTENER HARDWARE!!! ]<br /> <br /> <br/>____________________<br /> <br /> ''Rear-wheel (skewer) supports:''<br /> <br /> '''TWO (2)'''&nbsp;x 3/4" diameter (imperial size 3/4) socket cap bolts, length: 5" (Note: Can alternatively use hex-cap bolts; lower cost, but additional machining required)<br /> <br /> '''FOUR (4)''' x size 3/4 Hex nuts<br /> <br /> ____________________<br /> <br /> ''Generator mounting:''<br /> <br /> '''ONE (1)'''&nbsp;x 24V DC motor (100 to 350 watt)<br /> <br /> '''ONE (1)'''&nbsp;x heavy-duty door hinge<br /> <br /> '''ONE (1)'''&nbsp;x strong L-bracket, at least 3" long on one side<br /> <br /> '''TWO (2)'''&nbsp;x mounting plates (approx. 5" x 5", either steel or thick aluminum)<br /> <br /> '''ONE (1)'''&nbsp;x roller bearings (should fit motor shaft perfectly)<br /> <br /> '''ONE (1)'''&nbsp;x roller: solid aluminum cylinder, 1.25" to 1.5" diameter (Note: Can alternatively use Nylon cylinder with thin aluminum pipe as sheath)<br /> <br /> <br /> <br /> [SPECIFY BRACKETS, FASTENER HARDWARE, AND DISTAL ROLLER SUPPORT!!! ]<br /> <br /> [INCLUDE EXAMPLE LINKS!!!]<br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7464 Pedal Power 2011-11-26T07:56:59Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> __TOC__<br /> <br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: pedalpower@mit.edu<br /> <br /> List admin: moallem@mit.edu <br /> <br /> (** PLEASE DO NOT RELOCATE OR RADICALLY MODIFY THIS PAGE WITHOUT FIRST CONTACTING LIST ADMIN. KTHX **)<br /> <br /> <br /> <br /> == Parts/Materials List ==<br /> <br /> <br /> <br /> <br /> == Construction ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7180 Pedal Power 2011-11-22T23:02:26Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode.<br /> <br /> __TOC__<br /> <br /> <br /> == Contact Info ==<br /> <br /> Group email: pedalpower@mit.edu<br /> <br /> <br /> <br /> == Parts/Materials List ==<br /> <br /> <br /> <br /> <br /> == Construction ==<br /> <br /> <br /> <br /> <br /> == Documents ==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Working_Groups&diff=7179 Working Groups 2011-11-22T22:59:24Z

<p>Ted Moallem: </p> <hr /> <div>'''Working groups''' are teams of people within the Occupation, each focused on a particular area or task. These groups are the organs supporting the body of the Occupation. Within them you will find resources, discussions, and courses of action in every field.<br /> <br /> Working groups are '''open''', which means anyone can help out, including you! Like the Occupation as a whole, working groups are run as horizontal democracies, using consensus decision-making and holding publically accessible meetings. To join or volunteer with a working group, see its wiki page for contact information and meeting times.<br /> <br /> :''An alphabetized list of working groups:''<br /> *[[Animal Safety]]<br /> *[[WG/Anti-Oppression|Anti-Oppression]]<br /> *[[Arts and Culture|Arts and Culture]]<br /> *[[Camper Caucus|Camper Caucus]]<br /> *[[Citizens United to End Political Bribery|Citizens United to End Political Bribery]] For ending corporate money in politics<br /> *[[Commons]] Defining what is "Common Property"<br /> *[[Tent City/Safety/Community Wellness|Community Wellness]]<br /> *[[Direct Action|Direct Action]]<br /> *[[Energy|Energy]]<br /> *[[External Technology Support]] (to work on this wiki and other sites, not necessarily at Dewey Square)<br /> *[[WG/Facilitation|Facilitation]]<br /> *[[Faith and Spirituality|Faith and Spirituality]]<br /> *[[Food|Food]]<br /> *[[Finance Working Group|Financial Accountability]]<br /> *[[Free School University (FSU)]]<br /> *[[Health Justice|Health Justice]]<br /> *[[Houseless And Allies Community Working Group]]<br /> *[[Ideas]]<br /> *[http://wiki.occupyboston.org/wiki/Indigenous_Solidarity_and_Outreach Indigenous Solidarity and Outreach (Decolonize Boston)]<br /> *[[Individual Action]] What each of us can do on our own<br /> *[[Info Tent]]<br /> *[[InterOccupation Communications/Connections]]<br /> *[[Immigration Working Group|Immigration]]<br /> *[[Jail Support]]<br /> *[[Legal|Legal]]<br /> *[[Tent City/Library|Library, A-Z Library]]<br /> *[[Logistics|Logistics]]<br /> *[[Media|Media]]<br /> *[[Media Strategy|Media Strategy]]<br /> *[[Medical|Medical]]<br /> *[[Music and Events]]<br /> *[[Nonviolence and Civil Disobedience (Working Group)|Nonviolence and Civil Disobedience]]<br /> *[[WG/OBIT|OBIT]] Occupy Boston Information Technology<br /> *[[Occupy Boston Globe]]<br /> *[[Occupy Everywhere|Occupy Everywhere]]<br /> *[[Outreach|Outreach]]<br /> *[[WG/Peace Action|Peace Action]]<br /> *[[Pedal Power|Pedal Power (Documentation)]]<br /> *[[People of Color Caucus|People of Color Caucus]]<br /> *[[Queer and Trans Caucus|Queer and Trans Caucus]]<br /> *[[Safety|Safety]]<br /> *[[Signs|Signs]]<br /> *[[Solidarity]]<br /> *[[Strategies, Proposals, Positions|Strategies, Proposals, Positions]]<br /> *[[Street Theater]]<br /> *[[Students Occupy]]<br /> *[[Survivor Advocacy]]<br /> *[[Transparency|Transparency]]<br /> *[[UU Unitarian Universalists]]<br /> *[[Volunteer Coordination|Volunteer Coordination]]<br /> *[[Winterization and Fire Safety]]<br /> *[[Womens Caucus]]<br /> *[[Arts/Media/Writers' Caucus|Writers' Caucus]]</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7177 Pedal Power 2011-11-22T22:55:31Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily<br /> by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode. <br /> <br /> __TOC__<br /> <br /> ==Contact Info==<br /> Group email: pedalpower@mit.edu<br /> <br /> ==Project Documentation==<br /> <br /> <br /> ==Meetings / Build Sessions==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7176 Pedal Power 2011-11-22T22:54:48Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement'''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> The goal for this design was low cost, with most materials sourced from Home Despot and/or local hardware stores. Can be built relatively easily<br /> by anyone with access to drill press and basic tools. Circuitry includes voltage regulator ($1.50 from digikey), a few capacitors/resistors, and a diode. <br /> <br /> __TOC__<br /> <br /> ==Contact Info==<br /> Group email: pedalpower@mit.edu<br /> <br /> ==Project Documentation==<br /> <br /> <br /> ==Meetings / Build Sessions==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=7171 Pedal Power 2011-11-22T22:43:10Z

<p>Ted Moallem: Undo revision 6929 by Renjender (talk)</p> <hr /> <div>''Pedal Power for the Occupy Movement'''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> <br /> __TOC__<br /> <br /> ==Contact Info==<br /> Group email: pedalpower@mit.edu<br /> <br /> ==Project Documentation==<br /> <br /> <br /> ==Meetings / Build Sessions==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Working_Groups&diff=7170 Working Groups 2011-11-22T22:40:57Z

<p>Ted Moallem: Undo revision 6930 by Renjender (talk)</p> <hr /> <div>'''Working groups''' are teams of people within the Occupation, each focused on a particular area or task. These groups are the organs supporting the body of the Occupation. Within them you will find resources, discussions, and courses of action in every field.<br /> <br /> Working groups are '''open''', which means anyone can help out, including you! Like the Occupation as a whole, working groups are run as horizontal democracies, using consensus decision-making and holding publically accessible meetings. To join or volunteer with a working group, see its wiki page for contact information and meeting times.<br /> <br /> :''An alphabetized list of working groups:''<br /> *[[Animal Safety]]<br /> *[[WG/Anti-Oppression|Anti-Oppression]]<br /> *[[Arts and Culture|Arts and Culture]]<br /> *[[Camper Caucus|Camper Caucus]]<br /> *[[Citizens United to End Political Bribery|Citizens United to End Political Bribery]] For ending corporate money in politics<br /> *[[Commons]] Defining what is "Common Property"<br /> *[[Tent City/Safety/Community Wellness|Community Wellness]]<br /> *[[Direct Action|Direct Action]]<br /> *[[Energy|Energy]]<br /> *[[External Technology Support]] (to work on this wiki and other sites, not necessarily at Dewey Square)<br /> *[[WG/Facilitation|Facilitation]]<br /> *[[Faith and Spirituality|Faith and Spirituality]]<br /> *[[Food|Food]]<br /> *[[Finance Working Group|Financial Accountability]]<br /> *[[Free School University (FSU)]]<br /> *[[Health Justice|Health Justice]]<br /> *[[Houseless And Allies Community Working Group]]<br /> *[[Ideas]]<br /> *[http://wiki.occupyboston.org/wiki/Indigenous_Solidarity_and_Outreach Indigenous Solidarity and Outreach (Decolonize Boston)]<br /> *[[Individual Action]] What each of us can do on our own<br /> *[[Info Tent]]<br /> *[[InterOccupation Communications/Connections]]<br /> *[[Immigration Working Group|Immigration]]<br /> *[[Jail Support]]<br /> *[[Legal|Legal]]<br /> *[[Tent City/Library|Library, A-Z Library]]<br /> *[[Logistics|Logistics]]<br /> *[[Media|Media]]<br /> *[[Media Strategy|Media Strategy]]<br /> *[[Medical|Medical]]<br /> *[[Music and Events]]<br /> *[[Nonviolence and Civil Disobedience (Working Group)|Nonviolence and Civil Disobedience]]<br /> *[[WG/OBIT|OBIT]] Occupy Boston Information Technology<br /> *[[Occupy Boston Globe]]<br /> *[[Occupy Everywhere|Occupy Everywhere]]<br /> *[[Outreach|Outreach]]<br /> *[[WG/Peace Action|Peace Action]]<br /> *[[Pedal Power|Pedal Power]]<br /> *[[People of Color Caucus|People of Color Caucus]]<br /> *[[Queer and Trans Caucus|Queer and Trans Caucus]]<br /> *[[Safety|Safety]]<br /> *[[Signs|Signs]]<br /> *[[Solidarity]]<br /> *[[Strategies, Proposals, Positions|Strategies, Proposals, Positions]]<br /> *[[Street Theater]]<br /> *[[Students Occupy]]<br /> *[[Survivor Advocacy]]<br /> *[[Transparency|Transparency]]<br /> *[[UU Unitarian Universalists]]<br /> *[[Volunteer Coordination|Volunteer Coordination]]<br /> *[[Winterization and Fire Safety]]<br /> *[[Womens Caucus]]<br /> *[[Arts/Media/Writers' Caucus|Writers' Caucus]]</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=6663 Pedal Power 2011-11-17T07:30:50Z

<p>Ted Moallem: </p> <hr /> <div>''Pedal Power for the Occupy Movement'''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.<br /> <br /> <br /> __TOC__<br /> <br /> ==Contact Info==<br /> Group email: pedalpower@mit.edu<br /> <br /> ==Project Documentation==<br /> <br /> <br /> ==Meetings / Build Sessions==</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Pedal_Power&diff=6662 Pedal Power 2011-11-17T07:23:52Z

<p>Ted Moallem: Created page with "''Pedal Power for the Occupy Movement''' To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective..."</p> <hr /> <div>''Pedal Power for the Occupy Movement'''<br /> <br /> To support the self-sufficiency of Occupy member sites, the Pedal Power group aims to facilitate the low-cost construction and effective usage of pedal-powered electrical generators and related technologies.</div>

Ted Moallem https://wiki.occupyboston.org/wiki/index.php?title=Working_Groups&diff=6660 Working Groups 2011-11-17T06:10:28Z

<p>Ted Moallem: </p> <hr /> <div>'''Working groups''' are teams of people within the Occupation, each focused on a particular area or task. These groups are the organs supporting the body of the Occupation. Within them you will find resources, discussions, and courses of action in every field.<br /> <br /> Working groups are '''open''', which means anyone can help out, including you! Like the Occupation as a whole, working groups are run as horizontal democracies, using consensus decision-making and holding publically accessible meetings. To join or volunteer with a working group, see its wiki page for contact information and meeting times.<br /> <br /> *[[Animal Safety]]<br /> *[[WG/Anti-Oppression|Anti-Oppression]]<br /> *[[Arts and Culture|Arts and Culture]]<br /> *[[Camper Caucus|Camper Caucus]]<br /> *[[Citizens United to End Political Bribery|Citizens United to End Political Bribery]] For ending corporate money in politics<br /> *[[Commons]] Defining what is "Common Property"<br /> *[[Tent City/Safety/Community Wellness|Community Wellness]]<br /> *[[Direct Action|Direct Action]]<br /> *[[Energy|Energy]]<br /> *[[External Technology Support]] (to work on this wiki and other sites, not necessarily at Dewey Square)<br /> *[[WG/Facilitation|Facilitation]]<br /> *[[Faith and Spirituality|Faith and Spirituality]]<br /> *[[Food|Food]]<br /> *[[Finance Working Group|Financial Accountability]]<br /> *[[Free School University (FSU)]]<br /> *[[Ideas]]<br /> *[http://wiki.occupyboston.org/wiki/Indigenous_Solidarity_and_Outreach Indigenous Solidarity and Outreach (Decolonize Boston)]<br /> *[[Individual Action]] What each of us can do on our own<br /> *[[Info Tent]]<br /> *[[InterOccupation Communications/Connections]]<br /> *[[Immigration Working Group|Immigration]]<br /> *[[Jail Support]]<br /> *[[Legal|Legal]]<br /> *[[Tent City/Library|Library, A-Z Library]]<br /> *[[Logistics|Logistics]]<br /> *[[Media|Media]]<br /> *[[Medical|Medical]]<br /> *[[Music and Events]]<br /> *[[Nonviolence and Civil Disobedience|Nonviolence and Civil Disobedience]]<br /> *[[WG/OBIT|OBIT]] Occupy Boston IT<br /> *[[Occupy Boston Globe]]<br /> *[[Occupy Everywhere|Occupy Everywhere]]<br /> *[[Outreach|Outreach]]<br /> *[[Pedal Power|Pedal Power]]<br /> *[[People of Color Caucus|People of Color Caucus]]<br /> *[[Queer and Trans Caucus|Queer and Trans Caucus]]<br /> *[[Safety|Safety]]<br /> *[[Signs|Signs]]<br /> *[[Solidarity]]<br /> *[[Strategies, Proposals, Positions|Strategies, Proposals, Positions]]<br /> *[[Street Theater]]<br /> *[[Students Occupy]]<br /> *[[Survivor Advocacy]]<br /> *[[Transparency|Transparency]]<br /> *[[UU Unitarian Universalists]]<br /> *[[Volunteer Coordination|Volunteer Coordination]]<br /> *[[Winterization and Fire Safety]]<br /> *[[Womens Caucus]]</div>

Ted Moallem