Build Your Own CNC Controller Part3

Part3 in the build series of a DYI CNC controller, which includes several upgrades and corrections, among which: power socket for coolant pump, homing switches, closed loop stepper drive, surge suppresion diode and grounding of shielded wires and components. Check the pinned comment for updates! The updated wiring diagram is included in the written article: https://uptimefab.com/2021/01/11/build-your-own-cnc-controller/ --------------------- Videos by Corvettguy50 on grounding for CNC's: General grounding principles and ground loops: https://www.youtube.com/watch?v=cFrREKB-l4M General grounding principles and shielded wire: https://www.youtube.com/watch?v=84udcsEC7zI --------------------- Timestamps for this video 0:00 Introduction 1:14 Power Socket and relay for coolant pump 4:06 USB hub 6:15 Closed loop stepper driver for 4th axis 12:44 Homing switches 17:12 Surge suppressor diode for contactor 18:15 Power supply changes 19:40 Grounding Let me know if you have any questions or comments. Cheers, Robin