It's been a while but I remember you guys being very helpful in the past.
I am contemplating a device and am need of some advice as to what I want to use for powering it.

Whatever I use will need to be as small as possible and be able to take a pounding for extended periods of time in a much larger machine.
It will need to to rotate precision steel parts in 36 degree steps (10 different positions per rotation) and 30 degree steps (12 different positions per rotation). They (the precision steel parts) will be about the size of 3-4 quarters stacked. They will also be very close to each other, or at least as close as I can get them.

Any advice would be appreciated and Thanks in advance...