[ATM] Whiffle Tree cell using 'Swivel Leveling Mounts'?

["Lawrence Sayre" <lsayre@neo.rr.com>]

Is it possible to mount each of the floating "upper level" triangles of a  
27 point cell on 'swivel leveling mounts'?  I was thinking of JBWelding  
swivel level mount heads to the undersides of each of the 9 upper level  
triangles, right at the nominal balance point of each.  Will these offer  
enough non-binding freedom of tilting movement for the upper triangles,  
while not permitting much if any excess side to side slippage?  The ones  
in the McMaster Carr catalog are claimed to be good for up to 15 degrees  
of tilt (in every direction I assume).  Page 1214 on the online catalog.   
What do you think?

Lawrence Sayre
-- 
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My philosophy, in essence, is the concept of man as
a moral being, with his own happiness as the moral
purpose of his life, with productive achievement as
his noblest activity, and reason as his only absolute.

Ayn Rand (in the appendix to 'Atlas Shrugged')
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