I am fancying this motor http://www.pololu.com/catalog/product/2271/specs to motorize an X-Y stage. (Alternative High rpm motors with high reduction ratio and high encoder counts/rev are welcome ;)
If possible I want to not use stepper motors, as they are harder to control, and also it might be difficult to achieve speeds about 1k rpm?
What bothers me is the minimum angle/ amount of steps that motor can reliably be driven from rest.
Can anyone provide a good estimate what minimum number of steps I can expect?
Edit: I have a laser to measure a surface's depth, now I need to translate the surface in a zig-zag pattern. This requires one motor to do one very small step at the end of each line. In this case: <= 1/50 * 360° = 7°, which translates to <70° of the motor shaft, due to the gearbox.
Edit2: angle corrected.