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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Sun, 16 Mar 2003 13:20:40 GMT
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Viewed:
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803 times
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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 the Lego-only realm. 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?
-- Russ
-----Original Message-----
From: news-gateway@lugnet.com [mailto:news-gateway@lugnet.com]On Behalf
Of Teoman Naskali
Sent: Friday, March 14, 2003 1:37 AM
To: lugnet.robotics@lugnet.com
Subject: Back wheel construction advice
Does anybody have any good construction ideas for the back wheel of a 3
wheeled robot, the wheel is mainly for balance, and it will have to rotate
freely, the front wheels have separate motors so the back wheel is dragged,
the robot can rotate whithout moving forward.
thanks for any advice
Teoman Naskali
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Message has 2 Replies:
 | | Re: Back wheel construction advice
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| How big is the robot? If we're talking -Lego scale, maybe an actual ball mouse would be an answer - you can get very small ones meant to be used with laptops. Think about it - you're in the right approximate size range AND you get accurate 2-axis (...) (22 years ago, 16-Mar-03, to lugnet.robotics)
| | | Re: Back wheel construction advice
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| Russ. (...) 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 (...) (22 years ago, 20-Mar-03, to lugnet.robotics)
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Message is in Reply To:
| | Back wheel construction advice
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| Does anybody have any good construction ideas for the back wheel of a 3 wheeled robot, the wheel is mainly for balance, and it will have to rotate freely, the front wheels have separate motors so the back wheel is dragged, the robot can rotate (...) (22 years ago, 14-Mar-03, to lugnet.robotics)
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