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Old 05-22-07, 05:07 PM   #1
FS1974JH
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Talking Building a electric bike!

Hi everyone,

I've been working on a design in Design Workshop Lite (A Macintosh CAD application) for a custom built electric bike.

The entire bike will be custom made, custom fabricated and built.

The hardware store will be where I will get the tubing for the frame. I haven't decided on a specific electric motor yet. I will be using a standard sized bike tires for the tires. (27 inch or a little smaller)

Other than that and the motor everything will be custom made.
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Old 05-22-07, 08:15 PM   #2
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Nice! Keep us all updated!
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Old 05-22-07, 08:30 PM   #3
Zeuser
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Cool, I have a hand drawn design I should snac. It has an "A" type frame. Think of the letter "A" and tilt it about 60 degrees to the right. The batteries, 30 X 1.2V Nimh = 36V are mounted inside the frame. They can be easily removed and since they're regular "D" cells (Matched BTW) they're easily replaceable.

The motor is a crank motor. Think of the Bionx hub motor but instead you're pedaling the the shaft and the motor casing has a gear cog on the outside which goes to the rear derailleur.

The only downside is the lack of regen braking. But that's what happens when you have a freewheeling rear hub and a freewheeling crank.

FS... what kind of specs and technical details does your design have?
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Old 05-23-07, 12:31 PM   #4
FS1974JH
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Reply to Zeuser - Technical Specs and drawing

Zeuser -

The attached image is drawing 1.0 design of the motor bike.

It's pretty simple at the moment, but im still working on it.

Currently it is powered by a 12-Volt battery and a 12-volt electric motor, Belt-driven to the rear tire.

Currently the design is 4 lets say "w" shaped copper or other metal tubing makes the frame. (top and bottom). The design is made specifically for me, since I am VERY lightweight person (122lbs) Im using the less-expensive copper tubing which dosen't hold as much weight. The drawing will improve with time, still working on it. The battery and the motor sit in the mid-center of the frame, your legs sit on a top of the frame where (not added yet) there is a seat and foot rests. Adding more as I go, like blinkers, lights etc.
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Old 05-23-07, 01:49 PM   #5
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Hand drawn sketch

I will show you a better, hand-drawn sketch when I finish it today.

Joshua
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Old 05-24-07, 08:40 AM   #6
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Here is a Qcad export image from my Linux iBook

Here is a Qcad export image from my Linux iBook
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Old 05-24-07, 11:12 AM   #7
JeanCoutu
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Looks like a scooter to me
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