There are a lot of fun projects you can do with stepper motors salvaged ... especially if the motor has 4 or 6 wires. For a 4 wire motor, you can measure resistance until you find a pair that ...

you’ve probably run across more than a few stepper motors. These motors come in a variety of flavors, from the four-wire deals you find in 3D printer builds, to motors with five or six wires.