Subject:
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linear wheels (was Re: New web pages)
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 19 Aug 1999 22:05:51 GMT
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Viewed:
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606 times
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In lugnet.robotics, lego-robotics@crynwr.com (Jim Thomas) writes:
> In the description of the Riley Bot 2 you mentioned that it could only go
> straight on certain surfaces. I remember seeing on someone's web site a
> large wheel created out of many small wheels mounted perpendicularly around
> the diameter. With this configuration the large wheel could roll sideways
> freely. Would this solve the driving straight problem? Or would it just
> make the two driving wheels ineffectual? [...]
That's a type of linear wheel, which I call an "inverted linear wheel". Yes,
it's a good solution, and I have been working on exactly such a design over the
last two weeks (currently waiting for parts to arrive from Dacta before I can
proceed).
There are a number of different combinations of linear wheels and real (normal)
wheels that are possible in a three-wheeled design. Not all such combinations
are useful. I am currently looking at solutions that will allow me to do the
transport with two motors rather than three (I want to use the third motor for
multiplexing motor outputs). All of that is working towards the first "RILYBOT
4", which I haven't even started building yet. Without the wheels, there's not
much point.
- Robert Munafo http://www.mrob.com
LEGO: TC+++(8480) SW++ #+ S-- LS++ Hsp M+ A@ LM++ YB64m IC13
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Message is in Reply To:
 | | RE: New web pages
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| In the description of the Riley Bot 2 you mentioned that it could only go straight on certain surfaces. I remember seeing on someone's web site a large wheel created out of many small wheels mounted perpendicularly around the diameter. With this (...) (25 years ago, 19-Aug-99, to lugnet.robotics)
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