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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Thu, 9 Dec 1999 22:54:16 GMT
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Original-From:
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The WordMeister <dwilcox@wordsmithdigital+AvoidSpam+.com>
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Viewed:
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674 times
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Thanks. The design does require a fairly large robot platform, but it's not
huge. I think this could be made slightly smaller, but not too much. The
size I worked with was ideal for attaching the steering assembly to the RCX,
etc., as well as providing enough room for the range-of-motion required.
My target size was the width of the RCX itself, as this portion is attached
to the holes on the sides of the RCX.
Note that, due to the standard axle lengths of Lego parts, this assembly is
overall one stud wider than my goal--and is an odd number of studs across
(and therefore not symmetrical in respect to the RCX). When I was 4, things
_had to be_ symmetrical. (My son Isaac is the same way, which provides some
insight into nature vs.. nurture--a subject which, as an adoptee, I find
particularly interesting.) Somewhere along the line I grew out of that.
And now, back to my work ...
--Doug Wilcox
-----Original Message-----
From: Stefan Steinbauer <e9225865@stud3.tuwien.ac.at>
To: lego-robotics@crynwr.com <lego-robotics@crynwr.com>
Date: Thursday, December 09, 1999 4:38 PM
Subject: Re: Rack and Pinion Steering and idea for precise angle of rotation
detection
> hm.... nice design.
> I tried to implement this to one of my robots. I think I have to make them
> bigger.... or your design smaller.
>
> And what do YOU do in your christmas holidays???
>
> Stefan *pushing important work aside*
>
> The WordMeister <lego-robotics@crynwr.com> schrieb in im Newsbeitrag:
> 01bf40fd$f88c21a0$2a01a8c0@wordsmth.ici.net...
> > I finally threw together my own Lego MindStorms site.
> > www.wordsmithdigital.com/mindstorms/
> >
> > 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 that will allow programs • to
> > determine the wheel position using only one touch sensor and _no_ • rotation
> > sensors.
> >
> > This may also be of interest to those wanting to develop more precise
> > rotation-measuring assemblies, or for those who need to measure angle of
> > rotation without owning the official rotation sensor.
> >
> > --Doug Wilcox
> >
> > WordSmith Digital Document Services
> > 403 VFW Drive
> > Rockland, MA 02370
> >
> > 781-871-6162
> > fax 781-871-6264
> > http://www.wordsmithdigital.com
> > ICQ# 24868783
> >
> > - Web design (including e-commerce)
> > - Searchable Digital Documents on CD
> > - Desktop Publishing - Design - Scanning
> > - Computer/Software Consulting (Technical Wizardry)
> > - Computer Demons Exorcised
> > - Officially Registered in Dogbert's New Ruling Class
> >
> >
>
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