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Catalin Romania
member
Reged: 08/20/07
Posts: 70
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Re: cassegrain - primary mirror cell+secondary mou
04/26/08 01:53 AM
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@ mconnelley - thank you for the information!!! I was thinking to use a secondary mount like yours, with retaining ring, but I haven't found some pictures in any ATM site to show how it's the best way to do this. I want to make this spider wisely and by not using any type of gluing for the secondary  ....so I'll gladly wait for your pictures!!!
@Mike Jones - your program was put to work some time ago when I was looking for anything that helped me with the construction :-). Thanks for sharing it with us!!
I have to apologies for my english, since I wasn't clearer in the post...with the baffling tube. I try to reformulate that question...:-)
how do I mount properly the baffle tube?
I ask you that because of this test
http://translate.google.com/translate?hl=en&u=http%3A%2F%2Fastro-foren.de%2Fshowthread.php%3Ft%3D9476
in which the baffle tube sits on the primary , holding it against a plate....and causes some 'minor' problems here. I want to avoid that problem but every ATM site that I've seen with cass construction uses this tube for fixing the primary on it's cell....
Can it be done in other way , avoiding this primary mirror fixing with the baffle tube?
The friend who made me this set , gave me the proper spacing between the primary and the secondary and it goes like that...
1064mm spacing => 5700mm FL
1058mm spacing => 6000mm FL
Thank you very much!
Catalin
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Catalin Fus
Alexandria, Romania
www.catalinfus.ro
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