Stepper can make a big difference when you're working with certain mechanical devices. You will want to explore what you want the motor to do. One of the main things to determine is what type of motor you need. The motors vary in terms of how they are controlled. Stepper motors move between their poles without the need for an encoder. A stepper motors needs to be sized correctly. Otherwise, you run the risk of it not providing enough power or too much power, potentially damaging your device.