Subject:
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Re: Back wheel construction advice
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 20 Mar 2003 02:52:50 GMT
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Original-From:
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Chris Magno <cmagno@rogers.com!IHateSpam!>
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Viewed:
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1024 times
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Russ.
> I have found myself needing a similar freely-rotating wheel, and have had
> only marginal success with a caster type of arrangement. I've been
> daydreaming about a ball bearing arrangement (think of a mouse ball) but
> this would probably take us out of the Lego-only realm.
Matthias Jetleb (Jetleb@Netcom.ca) showed a few of us at one of our
monthly rtlToronto dinners, something he came up with.
I don't have any of the lego CAD products to draw it up. BUT.
if I attempt to describe it.
He wrapped a lego soccer ball with technic chain links. he then
"pinched" the chain links between two lego cams. The end result is an
all lego solution to what you just described as a ball bearing
arrangement.
the chain links prevent the ball from falling out, yet, let it roll
around within its confines.
> I'm not a purist,
> and could live with that, but would prefer a Lego solution. Does anyone
> have a good idea, Lego or non-Lego?
hope this helps
I'm going to CC Matt on this in the hopes that he will maybe take a
photo and post.
Chris
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Message is in Reply To:
 | | RE: Back wheel construction advice
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| I have found myself needing a similar freely-rotating wheel, and have had only marginal success with a caster type of arrangement. I've been daydreaming about a ball bearing arrangement (think of a mouse ball) but this would probably take us out of (...) (22 years ago, 16-Mar-03, to lugnet.robotics)
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