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Subject: [M]: RE: Pier Coupler Plates - experiences on my site
From: Frank Schwartz
Reply To: mapug@shore.net
Date: Sun Jul 22 13:41:42 2001
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While you're here, how about checking out the
Astronomy Book
List ? |
I don't really have plans, to be honest with you. I just purchased two
12"x12"x3/4" aluminum plates, then drew pencil X's diagonally, came in 1
1/2" in from each corner, drilled a 1/2" hole (some prefer 5/8") on each
corner, then use the top plate as a jig for the bottom plate (use a drill
press for best acuracy). For the pier holes, the bottom is to match
whatever pattern you have on your pier, and for the top, I simply centered
the base of the superwedge diagonally on the pier plate. Trace the holes of
the superwedge onto the top plate, find the center of each of those holes,
and drill. The trickiest part was the hole for the azimuth adjuster, since
it's movable. I drilled a slot rather than a hole. This results in a
little play, but it doesn't seem to affect the performance at all.
Sorry, that's about as detailed as I have.
One word of advice- try this with plywood BEFORE you drill your aluminum.
It saved me from having to spend another $100 on aluminum plates (my first
design was to go square with the plate, rather than on a diagonal)-- it
wouldn't have fit..
Also, my scope is a 10" scope, you've got a 12". I didn't get all
scientific or anything, but I explained my situation to the aluminum
company, and they said that 3/4" will withstand several hundred pounds
without flexure. You could also try 1/4" plate steel, but it's much harder
to drill.
As a matter of fact, since I've just spent the time to write this out, I
think I'll add this to my page! haha
----- Original Message -----
Sent: Sunday, July 22, 2001 7:57 AM
Subject: [M]: Re: RE: Pier Coupler Plates - experiences on my site
> Can you post or send me a copy of the coupler Plates with detail for cut
> outs (for bolts) I have a 12 in LX 200 that
> I wish to mount on a pier and would like some information on the plate
> requirements.
>
> John H Fraser
> ----- Original Message -----
> Sent: Sunday, July 22, 2001 12:57 AM
> Subject: [M]: RE: Pier Coupler Plates - experiences on my site
>
>
> > Hi Frank,
> >
> > Thank you for posting the pictures and commentary about the wedge vs
> > superwedge. I asked, a few weeks ago, for comments in this area and got
> > none. I opted to purchase the superwedge for the 8" LX200 based on the
> idea
> > that more would be better, and I wanted a setup with as little built-in
> > compromise as possible.
> >
> > Yours were the first pictures I have seen comparing these products
> > side-by-side and it is clear that I made the better choice - as you have
> now
> > concluded. I think the difference in $ is insignificant, especially
since
> I
> > got the wedge for "free" (ep deal).
> >
> > Tom
> >
> >
> >
> >
>
>
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