I am looking for a high resolution stepper motor to be controlled with an Arduino (step angle should be <<0.1°) and found this motor+gearbox which seems to fit which offers 0.018° (at 12V, 1.7A rated current): http://www.phidgets.com/products.php?category=23&product_id=3319_1
I have planned to controll the motor with an Adafruit Motor Shield v2 (with 1.2A current capability according to the specs with 3A peak): http://www.adafruit.com/products/1438#Description
The motor will progress at approx. 1 step/second. Has someone experience with this combination? Are there potential problems? Is there a better solution?