Alt-BEAM Archive
Message #03742
To: beam@corp.sgi.com, "'John A. deVries II'" zozzles@lanl.gov
From: "van Zoelen, Bram SSI-TSEA-352" Bram.A.A.vanZoelen@is.shell.com
Date: Wed, 26 May 1999 09:07:18 +0200
Subject: [alt-beam] Re: Spyder (was: Mr. Tilden & Co. on Discovery Channel)
[snip]
> No magic chaotic emergence, no learning, although the actual amount of
> time
> between turn-on and coordinated movement will vary. Speaking of which,
> given the arrangement of Spyder's legs (diagonally distributed at the
> corners of a rectangle) how does it walk very well at all (in fact I have
> seen it walk reasonably well) ? How can it be made to turn? Finally, is
> Spyder indeed the robot described by the patent or has stuff been added
> between the time of the patent and its current state?
>
>
> Any thoughts?
>
>
> Zoz
>
>
> ---------------------------------------------------------------
> John A. deVries II
> zozzles@lanl.gov
>
>
>
[Background information]
I am working on a design that involves 4 legs and each driven seperatly by
two motors. The legs are positioned diagonally at the corners of a
rectangle.
Same as you describe. The legs will be capable of moving up/down and
in/out. [no forward/backward]
After a lot of thinking i have figured out that there are two possible
ways to let this thing walk and turn. One is based on a very complex
movement sequence and the other is based on the flexibility of the
joints and legs. None of the methodes i've found will result in a very
good gait. But the first mentioned methode will come close too a
gait that is acceptable.
Bram
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