There are a lot of fun projects you can do with stepper motors salvaged ... t do anything to drive the motor. Others have a case ground wire. Steppers have either 4, 5, 6, or 8 drive wires so ...

Wiring the TMC2130 to a classic RAMPS 1.4. As said, before the driver does ... The testing-contraption to the left is a NEMA 17 stepper motor attached to an encoder. With the hardware set up ...