[ATM] Tubing for Trusses

[stuart452 at earthlink.net (Stuart Hutchins)]

Kurt,

Many people have used 5/8 or 3/4 inch diameter wood dowels for that size
scope.  Square poles can be ripped from 3/4 pine or cedar boards with
straight grain.  Aluminum tubing the same size also works well.  Look for
surplus tent poles. In steel conduit, 1/2 inch is big enough, and very
cheap.  If one bends, 50 cents replaces it.

Stuart Hutchins


----- Original Message -----
From: "Kurt Clement" <kurt.clement@flashmail.com>
To: <atm@atmlist.net>
Sent: Thursday, February 05, 2004 8:00 PM
Subject: [ATM] Tubing for Trusses


> Hello List,
>
> New to ATM and have been lurking on the list for a couple of months.  I am
> planning to build a 6" f/8 Newt for my second scope (first was a copy
> scope) and really like the travel scope - truss tube construction for
> portability and ease of storage.  What type and size of tubing should be
> used for the trusses on a small scope?  Is aluminum electrical conduit
> suitable, or is it too soft, or walls too thick?
>
> Thanks,
> Kurt Clement
> Nixa, MO
>


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