Exploring the operation of closed loop stepper motors on the bench. I compare an open loop stepper motor with a closed loop stepper motor. Step pulses are provided by an Arduino micro-controller. I also look at tuning software to adjust some of the stepper driver parameters. 0:00 - NEMA 24 and NEMA 34 Stepper Motor Overview 1:13 - Components and Setup Used (power supply, driver, Arduino, and stepper motor) 2:01 - CL57Y Stepper Motor Driver 2:55 - Comparing Closed Loop Stepper Motors to an Open Loop Stepper Motor 3:27 - Losing Steps on the Open Loop Stepper Motor (getting out of sync) 3:51 - Closed Loop Stepper Corrects Position Error 4:32 - Closed Loop Stepper Position Alarm 4:58 - USB Adapter Model Y-USB-CL and Finding the Driver 6:10 - Stepper Debugging Software ( Close Loop Stepper Drive ) 7:52 - Closed Loop Stepper Motor Quadrature Encoder 8:16 - Debugging / Tuning Software and Closed Loop Stepper Motor Simultaneously 9:00 - MF and DR Driver Inputs (motor free and direction) 9:56 - Deviation Alarm Threshold Set to 40 10:37 - End of Video ( NEMA 34 Operating ) Music: bensound-straight