04:33 555 timer stepper motor driver This is unipolar stepper motor controller circuits. Key Component is 555 timer and 4017 decade counter. 0
04:33 Lego Technic Stepper Mechanism with instructions Free building instructions here: Transmission using this mechanism here: More at: FB: G+: 0
04:33 Lego Technic 4-speed RC Sequential Transmission With Stepper Shifter Free building instructions here: More at: FB: G+: 0
04:33 3020T with Arduino CNC shield – Stepper test. This is a successful test of a stepper motor for my Chinese 3020T CNC machine. Its part of my conversion to GRBL from the old parallel port interface. 0