Originally Posted by
rustyolddo
...H-CNC board is chopper drive, &
stepper motors are obviously pulse drive. Noisy, trashy stuff. I
included my limit switch wires in the same cable with the motors. I
put my scope on the limit swith leads at the controller board and I
found 3 Vpp of noise on the switch lines...
Great news that your CNC is working now. As for the cause, I guess everyone assumed that you've adhere to CNC101... never bundle limit switches wires with the motor wires... :bat:
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