Re: ATM Tube construction for a permanent mounted scope

[Gord Tulloch <gtulloch@shaw.ca>]

Try searching for "Serrurier Truss", which I believe is the correct 
spelling. I'm building one (what I would have called a "double truss" 
(trusses from midpoint to the secondary cage as well as midpoint to the 
mirror cell)) for my 16" project just kicking off now.

I found a really nice example off Steven Lee's site:

http://www.ast.cam.ac.uk/AAO/local/www/sl/terms.html

Seems to be a new addition, I don't think it was there last time I 
looked at his site.

Regards,
   Gord

Yvi und Alexander Urban wrote:
> Bob
> Can you provide me a link or a description, about the serrier design? I
> searched the archives and the web, bud didn't find anything usefull.
> Cheers
> Alex
> ----- Original Message -----
> From: "Bob May" <bobmay@nethere.com>
> To: "atmlist" <atm@shore.net>
> Sent: Sunday, January 19, 2003 7:15 PM
> Subject: Re: ATM Tube construction for a permanent mounted scope
> 
> 
> 
>>A true Serrier truss is probably the best as the design of the Serrier
>>provides for 0 motion of the end pieces relative to each other as the
> 
> scope
> 
>>moves.  Another thing you may consider is providing temp compensation if
> 
> you
> 
>>live in an area where the temps vary a lot over the evening.  This is a
>>complex setup so you may not want to do it tho.
>>Bob May
>>http://nav.to/bobmay
>>bobmay@nethere.com
>>NEW! http://bobmay.astronomy.net
>>
>>
>>
> 
> 
> 
> 


-- 
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"If you were plowing a field, which would you rather use?
  Two strong oxen or 1024 chickens?"
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Gord Tulloch, RASC Winnipeg             http://www.gtulloch.com
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