What is the minimum resolution recommended for low acceleration motion control?
Maximum Velocity can range between 2 rev/sec to 50 rev/sec. Acceleration could be as low as 0.01 rev/sec/sec. Precision is important (as the motor will need to decelerate at the right point to reach it's target position without overshooting) and the motion should appear as smooth as possible.
Motor is 12VDC with a 64:1 gearbox. Encoder will attached to either shaft or after the gear box. Motor is controlled via the Arduino PWM pin, with a pin to indicate direction.
As a rule of thumb, is higher resolution required for very slow motion?