Very nice project. As described in the video, for servo motor v dumb stepper, servo motor is more efficient and servo motor won’t miss steps, or at least not without being able to provide a warning.

Nema 17 motors useually have 3mm threaded holes at the top. I used some washers to reach the perfect hight for the belt. The belt needs to ride quite low in the track to clear the carriage.

8 thoughts on “ A Dual-purpose Arduino Servo Tester ” Renan Marques Avelar Valente says: November 23, 2016 at 11:58 am Very ... Motors, AtoD, SPI, UART, and a host of various ICs.