View Single Post
  #12  
Old 10-10-2008, 12:10 PM
Satchmo's Avatar
Satchmo
Registered User

Satchmo is offline
 
Join Date: Dec 2005
Location: Sydney
Posts: 1,883
Quote:
Originally Posted by Astro78 View Post
here's a good benchmark for an aluminum tube

http://www.acquerra.com.au/astro/equipment/13/
Speak of the devil, I was just talking to the maker of that tube ,Garry, 5 minutes ago . He has a sheet metal construction business and is a long standing amateur astronomer owning scopes up to 20 " F5 . PM me off list if anyone is interested in services. He also makes superb mirror flotation cells for both truss Dobs and round tubes `scopes at very reasonable prices.

Its rare to find competent tradesman who have real sensibilties as far as astro gear , and he'll always suggest an improvement in your design if he can see it.
Reply With Quote