- If your motors getting toasty you may not have the right voltage stepper. I would test the motor driver with your multimeter and see what the driving voltage is and make sure the motor is rated to handle it.

Examples of different Nema 17 Steppers:

3.4V Stepper

12V Stepper

24V Stepper

*PS: These are just examples of the different Nema 17 style motors, I have no experiences with these sellers.