Thread: Research
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Old 12-03-2008, 08:02 AM
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xPosTech xPosTech is offline
The Old Master Motorized Bicycle Builder
Join Date: Oct 2008
Location: SETexas
Posts: 209
Default Re: Research

There was a TV series on human powered vehicles, generators, water pumps, etc. I think on the Discovery channel a year or so ago. One of the projects was an alternator using the front wheel.

The guy epoxied several rare earth magnets to the rim (disc brakes?) and wound a coil for the pickup. Since the output of a moving magnet past a coil is directly proportional to the speed of the magnet it had a high efficiency, enough to power his lights and GPS receiver with just a few magnets. Magnets were scavenged from dead hard drives.

Since I'm kinda Scroogey, I only have basic cable. The channel would have to be Discovery, History, National Geographic or The Learning Channel. You could probably find the series searching their websites.

Instructables probably has a few how to's on home built alternators.

Good luck

I wasn't born in Texas but I got
back here as soon as I could.

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