From: wgd_at_gtwn.net
Date: 03/23/00
From: wgd_at_gtwn.net Message-Id: <200003231828.MAA09952@gtwn.net> Subject: Re: Double-wall skin Date: Thu, 23 Mar 100 18:28:20 +0000
I the book (old) "Geodesics" there are some photos of a wheel and wire dome that
looks interesting. One shows it loaded down with numerous sandbags. Wonder what
happened to it?
<pre>
> > similarly to bicycle wheels. A single rigid "axle"
>
> Yes! that's it. (Bucky, too, used the bicycle wheel example in
> describing
> the minimum number of vectors interacting to limit movement.
I thought it was a good idea...always wanted to build one too, but
never got around to it. (There are a LOT of things I want to do,
but who has time? It would take me the entirety of the next century
just to try my current ideas, let alone any new ones I come up with.)
> > Something similar could easily be done with tensile
> > membranes. Radial tent structures could connect between
> > the "axle" and the tension ring, resulting in a double
>
> And very lightweight. I think what we're describing is essentially a
> tensegrity, although in all the tensegrities I've ever seen, the
> struts
> are aligned along the dome skin instead of perpendicular to the skin
In essence it's a tensegrity. But far simpler than most of them. If
all goes well (and when does it ever?) I'll make my first hypar panel
from fabric this weekend. Gotta' swing by Wal Mart to get some
fabric first, though.
I'm excited -- I think I figured out patterning!
-- Chuck Knight
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</pre>