Subject:
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Re: Motor/generator efficency (was Re: Micro Scout can run off its own motor)
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 14 Sep 1999 16:25:57 GMT
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Viewed:
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1836 times
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James Howse wrote in message ...
> In lugnet.robotics, Arjen Gerstel writes:
> > If you connect two motors to each other (i used 'new' technic motors) and
> > turn one of them manually, the other one will turn too. You can transfer
> > rotational motion through an electric wire this way. Actually, the motor
> > you're turning simply acts as a generator.
> > It's not very efficient, but a lot less cumbersome than some other methods
> > of energy transfer.
>
> I saw this when Lego was showing off mindstorms here in Syd.
>
> THEY (lego) claimed the setup was almost 100% efficent. i.e. one rotation • of
> generator = one rotation of motor.
Only without load !
Very useful still, but not when actual force is needed.
Eric
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