Re: Pier for 1100GTO #Guiding
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I’m new to the group but it looks like I’m going to be getting an 1100GTO as well.
I am familiar with Astro-Physics piers and I think they are extremely well made, very solid, and work extremely well. I want to put my 1100 in a ROR observatory and really would like something that functions like the AP pier, without the legs.
My solution is to by an 8 in OD 7.75 ID aluminum tube 6 ft long cost $220 from a local supplier. This has the same diameter and wall thickness, 1/8 inch, as the tubing AP uses for their piers. I had an old AP Flat Pier Plate to which I took a reciprocating saw and removed the ring on the bottom of the plate, which fits inside the pier tube. This ring is 1/2 inch thick and it took about an hour to cut it off. It is a snug fit inside the pipe, but I will attach it with 6 screws for which it is already drilled and tapped, and place it 3/4 in below the top of the pier. I will drill another 6 holes to attach the 1100 which will sit on the ring. This will give fit and function similar to the AP pier. Since it is 6 ft long it will allow 24 in to be buried, with 48 in above ground.
Good luck, I can't wait to get the mount, AP really builds extremely high quality equipment.
On Friday, March 19, 2021, Steve C. Mitchell, Sr., O.D. <smitchell@...> wrote: