Here's a short video of the ATC carousel doing random "seeks". Performance is about what I expect from the production system. As you can see, it's pretty quick. This is running with a small, under-powered servo motor, due to the incorrectly built encoders on the motors I expect to actually use. I hope to be able to kludge together an encoder to get the real motor going in the next couple of days.

http://youtu.be/v7kQPxKUQJ0

Regards,
Ray L.