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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Wed, 19 Jan 2000 20:12:06 GMT
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Original-From:
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Tilman Sporkert <[tilman@activesw.]Spamcake[com]>
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Viewed:
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752 times
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Following up on this thread from last year...
While taking apart my Space Shuttle (I needed the turntable for another
project), I noticed that they used this type of connection 4 times. In the tail
fin, and in the lift arm in the cargo bay, two Technic beams are joined
end-to-end by attaching 1x5 Technic plates to the sides, with the studs of these
plates pressed into the holes in the beams. The "plates" (for the lack of a
better word) have rounded ends, and go like this:
Hole - Stud - Nothing - Stud - Hole
A short axle with washers is inserted through the holes in the end. The whole
assembly makes a very strong joint.
Tilman
> -----Original Message-----
> From: dave madden [mailto:dhm@mersenne.com]
> Sent: Thursday, December 09, 1999 1:52 PM
> To: lego-robotics@crynwr.com
> Subject: Re: Rack and Pinion Steering and idea for precise angle of
> rotation detection
>
>
> =>> 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.
>
>
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