Re: ATM Composite Materials For ATMs

["Benoit Schillings" <benoit@be.com>]

>I've never use this kind of material, is it easily workable ?
>Can you cut the tube and drill in it ?

>I've been at http://www.acp-composites.com/ and saw their graphite
>tubes.
>will something like their TU-09C (.750" ID .032" WT) be usable for 
12.5"
>F/4 ?
>( I need something very stiff because the scope is to be used for CCD
>imaging )


Cutting is easy... a regular hacksaw will work fine.

Drilling... you need to be careful, you generally want to avoid having 
a local
pressure on the tubing, so it is better to have some kind of clamping 
mecanism
glued at the end of the tubes.


0.750 for 12.5 inch... yes... no problem if the rest of the truss is 
done right.


                -- Benoit