what is the difference between stepper motors and servo motors?
It’s all in how it is controlled. A stepper motor is controlled by counting magnetic pulses from a magnet and pickup mounted on a motor. A controller counts the pulses and adjusts the speed based on the operators required inputs. A servo motor is controlled by counting light pulses inside the servo. A light inside the servo shines on a disk with slits in it and a photocell recieves the light through the slits as the motor rotates. The photocell counts the flashes of light and sends that signal to the motor controller. The controller counts the pulses and adjusts the speed based on the operators required inputs.
