Re: ATM Beginner-Before I build this thing

["Charles F" <quantemlp@hotmail.com>]

helly,
yes.  I went to my local home depot and purchased a 1 1/4" coupling tread 
(male) to electrical pvc. along with that, I also bought its female mate. 
these two go together nicely. I get about 1 1/4" travel painted black, looks 
great. I am going to have some photos of the 8" f/6 truss scope I am 
building (first project) sometime soon. the parts cost a total of $2.93.


>From: "Dave Richardson" <yickityoptorus@hotmail.com>
>Reply-To: "Dave Richardson" <yickityoptorus@hotmail.com>
>To: atm@shore.net
>Subject: ATM Beginner-Before I build this thing
>Date: Tue, 28 Aug 2001 13:28:18 -0500
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>
>O.K.  I've got all the basic pieces parts for a 6" F8 Dob.  I would
>appreciate some feedback on some final questions before I start cutting and
>drilling.
>
>1.  I am planning on using the simple mirror mounting as shown on Ray's
>page.  Should I use this type of mounting? I admit that I don't fully
>understand the types with the springs. The ones that I've seen on the Web
>have a centered bolt or threaded rod running through the backplate and into
>the mirror cell (wouldn't this restrict the pivot of the mirror?).
>
>2.  Some sources on the Web say that diagonal offset is needed. I believe I
>understand the logic behind this, but how much difference does this make?
>Since this is my first scope, I am hesitant to deviate from the plans.
>
>3.  The money is spent and the wife says its gonna be a while till I can
>spend more. (Thank God she keeps me in line or I would be flat broke :-)
>So does anyone have any ideas for a really good 1 1/4" homemade focuser?
>
>As always, all responses greatly appreciated.
>
>Dave Richardson
>
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