Hi Alistair
Make sure that the calibrations will suit the situation especially the azimuth to suit the window/cutout in the upper board. May need to compress the design.
Is the azimuth going to be free to rotate independently to line up without having to move the whole dob base? With mine it fits neatly around the lazy susan (not sandwiched in-between) so I'm able to easily adjust the azimuth with a known star then lock in place with a drawing board clip. Makes it real easy.
I will be checking out Bojan's suggestion shortly.
Cheers
Richard
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