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Thanks Andrew, I'll give it a go!!
Erick,
I had thought about those limitations while I was building mine, based on the problems with the larger ones that I'd seen. The scope body is secured to the mount with pivot bolts, so it doesn't merely rest on the pivots, but is locked in. Fortunately this scope is very light (being only a 3" reflector) so uneven pressure on the alt az bearings is less of an issue here, and the dob base will be secured to the wedge with a bolt, so no danger of popping out there. Some quick indoor tests have shown it to work reasonably smoothly propped up at an angle on a board, but the proof will be in the pudding when actually looking at the stars or something distant.
Thanks for your advice, I'll get some photos happening!
Cheers, graham
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