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Old 04-02-2016, 07:02 AM   #13 (permalink)
serialk11r
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Quote:
Originally Posted by Xist View Post
Gumby, any idea how much they would charge for one of those generators?
Don't use a generator, just use an RC drone/helicopter motor. Not hard to find one rated to 30k rpm, and it'll cost you like 100 bucks.

Dr. Mad Thrust Series Motor 4082 - 1400kv for 90mm EDF /8S

41000rpm

If you do some back of the napkin calculations, it should be able to pump out more power than a car alternator, you just have to step it down with a DC DC converter.

This is essentially a motorcycle or race car PM generator on crack. Those spin at 16000rpm and have a really good power to weight ratio, now you're just increasing speed and decreasing torque.
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