Subject:
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Re: Fishing for a tasty linkage/gearing/robotic building thread...
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 12 May 1999 12:53:46 GMT
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Original-From:
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David Warnock <david@sundayta.coNOMORESPAM.uk>
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Viewed:
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1736 times
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Michael,
If you only need to make right angle changes of direction how about a design
where the robot does not turn.
You could have one set of axles for forward/backward with 1 motor driving both
sides so you go straight.
Then to change direction a second motor lowers a set of wheels/axles are right
angles to the first set lifting the original wheels of the ground. Then use a
3rd motor to drive the bot from side to side.
Maybe not very elegant and ceryainly jnot very flexible but it should be
possible with the only complicated bit being the lowering and lifting of the
side to side axles.
Regards
Dave
** Reply to message from "Michael Gasperi" <gasperi@alynk.com> on Wed, 12 May
1999 12:30:16 GMT
> To make the activity more interesting, I'd like to build a vehicle that can
> execute the program also. I would probably substitute LEGO blocks for the
> beads. The biggest problem I've got is making perfect right angle turns. I
> don't want the vehicle to curve around corners. Just go forward, and then • make
> a pure right (or left) turn, and then forward again. It would be nice if it
> could do this several times without getting too far out of whack. I suppose
> this is the way a Logo turtle moves. Has anybody built anything that acts
> like this with Mindstorms yet?
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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