At 1.8 degrees per step there are not 4 steps per full revolution, more like 200.
Oops. Nothing like starting with the wrong assumption!
So about 1 revolution per second is the max I can expect from 1.8 degree step angle motors then.
Just by curiosity, why the order of magnitude difference in max velocity between the 1062 (about 191 step / sec) and the 1063 (about 2048 step / sec)
Is it a limitation forced by the nature of the motor (unipolar vs. bipolar) or is it design choices on the boards?