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Originally Posted by vespine
Thanks for the replies everyone.  Well, now i'm undecided, seems like everyone thinks the hinge thing is the way to go but I'm still really curious about how well my turn table idea would work. 
I'll make some time to get out to my dad's in the next week or two, he has a home workshop and loves doing stuff like this with me |
I get the impression you're thinking about using a lazy-susan type bearning, which will work, though they aren't really that smooth in operation nor do they take axial loading well as they tend to bind. Axial load by the way is the load at 90° to the shaft. A motorised Scotch mount is the simplest and best solution.
See:
http://www.mikeoates.org/mas/projects/scotch/ for a good simple and reliable design.