I would like to build a very simple, circular wooden platform that rotates automatically - no stopping. The torque is not very important, as it doesn't need to support much weight. As far as rpm, not too fast, but not incredibly slow - about the pace of a fast escalator? That's the only comparison I can make. It's for an art project. I know this is probably an easy one for most people, but I am starting from square one. Thanks for any help.
Why not just buy a record turntable? Stick a 3 foot platform on it. It's kind of fast, and doesn't support much weight.
Or get a small motor off eBay, and make your own.
You just need some bearings to hold the turntable, and a belt to connect the small wheel on the motor to the big wheel on the turntable.