[ATM] need ides to reinforce my struts

[RP Sutton <rp@suttonsonline.us>]

Hello All -

a few weeks back I wrote in about the poles on my 3 -pole DOB flexing. With the 
help of other list members, we have come up with an idea to try before we 
convert it to a std 4 truss (8 pole) design.

The flexure seems to be coming from the gap between the ID of the mirror box 
holes that the poles go into and the OD of the poles themselves. The poles pass 
thru the mirror box top and thread into a stud located about 6 inches into the 
box. There is a difference of .10 inches between the ID of the holes and the OD 
of the poles. This allows the poles to flex quite a bit.  We are going to try to 
"sleeve" the bottom 12-24" of the pole with a piece of aluminum or steel tubing 
that will slide over the poles and eliminate the gap between the mirror box and 
the poles. The Poles have an OD of 1.25 inches and the mirror box holes have an 
ID of 1.35 inches.

Any ideas where I can an get the sleeves, how close to the ID of the sleeves can 
be to 1.25 (the OD of the poles). and what they should be made of? 

As always, thanks to everyone for their help and ideas -

RP
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