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Re: (ATM) Spiders
- To: atm@efn.org
- Subject: Re: (ATM) Spiders
- From: Chuck Grant <grant@aretha.llnl.gov>
- Date: Thu, 12 Oct 1995 13:34:12 -0700
- Bell-Net: (510) 422-7278 (Fax 510 422-2095)
- Campus: Lawrence Livermore National Laboratory
- Department: Environmental Protection Department
- Division: Environmental Restoration Division
- In-Reply-To: <Pine.SOL.3.91.951012175112.11806A-100000@cass29> (message fromKlaus Peter Schroder on Thu, 12 Oct 1995 18:05:56 +0100 (BST))
- Location: 7000 East Ave. L-530, Livermore, California, USA 94550
- Organization: University of California
- Reply-To: chuck-grant@llnl.gov
>
> Well, that is exactly why I posted that (obviously well established)
> Idea with the tangentially connecting spiders. I tried it myself on
> a 14" of a friend and myself - this non-radial geometry stops all
> rotational flexibility and hence vibration! It can, however, not be
> realized with wires and tension! Any tension draws (rotates) the diagonal
> holder to the position, in which the wires join it radially, of course.
>
>
The spider legs are not attached tangentially, but kind of
half way between tangentially and radially, and connected in
pairs on oposite sides of the diagonal holder. And there is
no reason why this design can not be used with wires.
Tangential legs are much weaker than this arrangement
(shown below) and require stiff legs because tangential legs
can not be put in tension.
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- References:
- (ATM) Spiders
- From: Klaus Peter Schroder <schroder@ast.cam.ac.uk>