Re: [ATM] Cost effective tubes for truss scope

["Jacob Lauser" <sirius@riverstyx.com>]

Jerry,

Industrial Metal Supply (www.imsmetals.com) sells 12-foot lengths of 6061-T6
and 6068-T8 Aluminum tubing in a variety of diameters very inexpensively
(approx. $20/tube) and if you live near them, they deliver for free with no
minimum order. A great source, if you ask me... I'm using them to build a
small 10-incher this summer...

- Jake Lauser

----- Original Message ----- 
From: "Jerry B. Hillman" <JBHillman@ev1.net>
To: "The Amateur Telescope Makers List" <atm@atmlist.net>
Sent: Tuesday, June 22, 2004 4:24 PM
Subject: [ATM] Cost effective tubes for truss scope


> Hi all,
> I am going to rebuild both of my scopes to make them lighter.  Much
lighter.
> I need to get them down in weight so that I have the option of mounting
them
> on a EQ platform.  Currently my 10" is in a sonotube and the 16.5" is
using
> steel electrical conduit for trusses.  Both are too heavy. The steel
conduit
> is rock solid, but makes the scope weigh about 30 pounds without the
mirror.
> Any recommendations for lighter, affordable tubes would be appreciated.
> And on another subject -
> Would anyone with a 16" scope care to share some observations with me?
Mine
> is a 16.5" F4.5. I would like to compare notes and see if my 16.5" is up
to
> par.
> Respond off list please for the observation question.
> Clear skies, Jerry
>
>
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>
>
>


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