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Hi Phil...
I'm currently constructing a wheel-away observatory for my 10"dob..I've set a pier for the mount to sit up higher in...the pier is triangular in shape to allow the inner framework of the observatory to fit snugly and locked to the pier..
I've chosen 25 x 150mm treated pine timber for the walls and framework..glued, screwed, gapsealed, and coated with decking oil inside and out...insulated using packing foam..(check with your local schools if they received any new whiteboards!!!)
It should be finished soon and i'll try to provide a few photo's once it up and running.
Cheers!
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