Subject:
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Re: Thoughts on Turning
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 26 Jan 1999 21:15:59 GMT
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Original-From:
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Zachary A. Bourk <zbourk@san+stopspammers+.rr.com>
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Viewed:
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1227 times
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If you dare to go non-purist, I say ping pong balls! They're light, low
friction, and generally of uniform dimensions.
-Zach
alex wetmore wrote:
>
> On Tue, 26 Jan 1999, Peter Hesketh wrote:
> > How about this for a totally untested idea: (it relies on the existence
> > of a lego sphere which may not actually exist)
> >
> > Use 3 spheres instead of wheels, with each sphere in contact with four
> > driven axles, a bit like a mouse ball.
>
> There are two spheres found in the Robosports expansion pack, but
> they are soft foam and couldn't support the weight of the RCX. Its
> still an interesting idea though, and could be done with standard
> rubber balls (even mouse balls if you have enough extra mice, and I
> think that I do). I think I might play with it next time I have
> time to play with lego.
>
> You only need two driven axles per ball, and all the balls should
> rotate the same way. So with 4 balls (to make the design simpler)
> and two motors you should be able to go in any direction without
> ever actually turning.
>
> alex
>
> --
> Did you check the web site first?: http://www.crynwr.com/lego-robotics
--
--------------------
Zachary Bourk
UCSD, EE
http://www.geocities.com/ResearchTriangle/System/4968
--------------------
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Re: Thoughts on Turning
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| (...) There are two spheres found in the Robosports expansion pack, but they are soft foam and couldn't support the weight of the RCX. Its still an interesting idea though, and could be done with standard rubber balls (even mouse balls if you have (...) (26 years ago, 26-Jan-99, to lugnet.robotics)
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