Re: Rotating pier adapter #Polar_Alignment
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Aside from astronomy I am also a hobby machinist. Years ago I helped a fellow that built an observatory in a surplus ambulance. He had the same problem. What I suggested to him and he did implement was to get an 8” or 10” machinists Horizontal rotary table. https://en.wikipedia.org/wiki/Rotary_table They rotate 360 degrees and lock down solidly enough to overcome the forces produced by the cutting action of a milling machine cutter. Extremely rigid.
That may be an option for you. I would stay away from the Chinese made. Go with Japanese, Taiwanese, or eastern Europe.
From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of r1300rs via Groups.Io
I'm thinking of placing an AP1600/1100 in my portable observatory trailer. Since it moves around field to field; it can't be parked precisely so that the pier is facing North for Polar Alignment. Does the RPA allow the base of the mount to be "swiveled" 360 degrees and then locked down?