[ATM] wire spiders

["Tim Nott" <timothy.nott@ims.sa.edu.au>]

Hi Alan,

I've recently used Mel's spider on the single upper ring in my 16''.  All you have to do is run something through the ring (or outside) vertically to hold the two eyebolts above and below the plane of the ring.  I used little reinforced 12mm thick plywood posts and cut the corresponding holes out of the plywood upper ring usig a coping saw, gluing everthing in place and it's very sturdy.  As others have said before, using an X cross section will create steeper angles and therefore much more stabilty than a V one.  I also used two pieces of wire instead of one in case one breaks and so I don't have to run the wire though the wood of the ring.

Tim Nott
(Adelaide, Australia)  
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