Hi All,
I have just built a Chinese bought cnc kit. It came with NVUM 4 Axis CNC Controller (MACH3 USB) and 4TB6600 Stepper Drivers to power the motors.
I followed the manual carefully and the build went well. But right away I noticed a little knocking sound coming from all four motors, this sound get louder
when you jog the machine around.... and turns to a full-scale shaking when I enter the roadrunner Gcode... (the spindle isn't running during these tests).
The seller hasn't been able to help me so far... and I can't solve it... pls help!
I will attach some video to show whats going on.