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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Fri, 10 Dec 1999 01:45:11 GMT
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Original-From:
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The WordMeister <dwilcox@+avoidspam+wordsmithdigital.com>
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Viewed:
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831 times
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Top of Page 14 in Fred Martin's "The Art of Lego Design"
(ftp://cherupakha.media.mit.edu/pub/people/fredm/artoflego.pdf) . (BTW, this
is an excellent document with some good techniques--I'm really skimming
here, but it looks like part of this was used to recommend stuff to Lego for
the _Constructopedia_.
***************************************
"In order to build outward from a vertical wall of axle holes, a
smaller beam may be mounted with its top studs in the holes of the
beam wall.
You will not see this configuration in LEGO’s model plans, be-cause
the top studs are slightly too big for the axle holes, and a
model left in this state will gradually experience solid flow as the
stressed plastic expands. The official LEGO solution is to use the
“connector peg with stud” parts (see Figure 22), but this method is
actually stronger (or at least until the LEGO parts deform).
*****************************************
Thanks for the tip! I believe I can rectify this pretty easily--although the
strength factor is going to be important.
--Doug Wilcox
-----Original Message-----
From: Dave Johnson <djohnson@sirius.com>
To: lego-robotics@crynwr.com <lego-robotics@crynwr.com>
Date: Thursday, December 09, 1999 6:43 PM
Subject: Re: Rack and Pinion Steering and idea for precise angle of rotation
detection
> dave madden wrote:
>
> > 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?
> It's mentioned in Fred Martin's "The Art of Lego Design"
> (ftp://cherupakha.media.mit.edu/pub/people/fredm/artoflego.pdf) which is
> an excellent basic intro to technic for anyone who hasn't seen it.
>
> Dave Johnson
>
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