Mechaduino is a board that sits on a regular stepper motor and turns it into a servo ... to get the accuracy they’ve promised. he Arduino-sounding bit of the name comes from their full ...

There are four poles to each of these coils, and they plug right into a standard stepper driver, so to control this board all you need is a basic Arduino and a motor shield. Or a RepRap board ...

grbl is stepper motor controller ... for the normal drivers included on grbl Arduino shields (or integrated Arduino+drivers equivalents), and so I have been considering designing my own to link to ...