Subject:
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Re: moving in a straight line with two motors?
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 13 Nov 1998 19:38:48 GMT
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Original-From:
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Mark Koesel <KOESEL@nospamUMICH.EDU>
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Viewed:
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2099 times
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I believe you are thinking of Leo Dorst's adder/subtractor.
I had been eyeing this myself for use with mindstorms, since
it would seem to solve the "differing motor RPM phenomena"
problem.
The page is at:
http://carol.wins.uva.nl/~leo/lego/diff.html
> > "jsk" == John Scott Kjellman <jkjellman@ameritech.net> writes:
> At one point, in the distant past, I saw plans for a gear box that
> used either 2 or 3 differentials, I do not remember which.
>
> 2 motors were used, 1 to drive both axles, one for steering.
>
> axle1 == motor1 + motor2
> axle2 == motor1 - motor2
>
> With motor2 off, 1 on, the vehicle (most likely treaded), will track
> straight, in forward or reverse. With motor1 off, 2 on, the vehicle
> will spin in place. Combinations of the 2 will do the obvious.
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