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 18:23:43 GMT
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Viewed:
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645 times
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Yeah, this serves me right for de-lurking before rereading all of the previous
posts... :)
In lugnet.robotics, Ian Warfield writes:
> 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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