Subject:
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Re: Rack and Pinion Steering and idea for precise angle of rotation detection
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 12 Dec 1999 17:57:52 GMT
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Viewed:
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682 times
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In lugnet.robotics, dave madden <dhm@mersenne.com> writes:
> =>> On it (http://www.wordsmithdigital.com/mindstorms/rack-and.htm) is a scan
> =>> and detailed description of my (at last) finally-successful • implementation
> =>> of a rack-and-pinion type of steering mechanism...
>
> I just looked at your pictures, and I wonder if the way you've got the
> final axles mounted (1x2 gray 2-hole beam, studs into side of 1x6
> yellow 5-hole beam) is OK. I seem to recall reading somewhere that
> the parts fit that way, but that the mating caused deformation of
> either the studs or the holes if left for a long time.
>
> Does anybody else remember that passage? Or am I just inventing
> excuses for why I didn't think of this nice solution? :-)
>
> d.
Don't worry, someone did say that. On page 14 of The Art of LEGO Design
(ftp://cherupakha.media.mit.edu/pub/people/fredm/artoflego.pdf), Fred Martin
admonishes us not to do that because the plastic will in fact eventually
deform.
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