Subject:
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Re: multiple motors
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Wed, 26 Nov 2003 15:46:59 GMT
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Viewed:
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3938 times
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Steve Hassenplug wrote:
> > > The key is to use a differential.
> > >
> > > With six motors (double what I did with three), put two motors
> > > on each side (2xRight + 2xLeft), and the other two are connected
> > > to a differential, in the middle (like the drive wheels in a car).
>
> Have I explained it very well, yet?
Yes, thank you - you explained it very well. The day after posting the
question, I realized a differential would solve the problem... but you stated
the solution far more clearly than I had thought of it.
Now, of course, I'm trying to think how to build a gear shift for the system
as well. How can I make one "shift" change the gear ratio on two parallel (but
seperate) gear trains? That way I can keep my fast-turning differential drive,
but still have a low-speed, high torque mode.
Oh, the wonderful questions you can ask with LEGO... <grin>.
--
Brian Davis
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Message has 1 Reply:
 | | Re: multiple motors
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| (...) (URL) such a mechanism I built in my latest sumobot... (sorry, bad photograph) Two gear shifts are activated at the same time, one for right wheels, the other for left wheels. The gearshift is activated by a motor controlled by RCX, gearing (...) (21 years ago, 26-Nov-03, to lugnet.robotics.rcx)
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Message is in Reply To:
| | Re: multiple motors
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| (...) Yes, that was the problem Brian was having. And, because the LEGO motors are so efficent, they work really well as generators. So, if you hook two together, and try to turn 1 and stop the other, you will have problems. I'm not sure I explained (...) (21 years ago, 25-Nov-03, to lugnet.robotics.rcx)
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