Quote Originally Posted by Palletlad View Post
I have on the board ("ON DP" K1, K2, K3, K4) accompanied with SW1, SW2 AND SW3 per X Y and Z drivers
K3 and SW1 are the switches set for all three drivers
I found a chart that may assist but still I know too little on this side as all I wanted was to make stuff with the machine.
http://img.yunqudao.com/UploadFolder...ault/3_649.jpg
is changing K3 to K1 what you mean Doddy to set the micro stepping?
A quick bit of clarification, the "ON DP" marking on the DIP switches (the 4-inline blue switches) - the ON represents the position of the "On" state of the switch. So it's not a case that you have K3 on, but rather that you have K1, K2, K4 on. Looking at the markings on the board that represents 8 micro steps. Change one axis (and one only) to Off, Off, Off, Off (all toggles towards the numbers, away from the "ON DP" and retest.

(I'm assuming in the chart on the board that '1' represents a switch in the ON position... not a safe assumption, but the existing settings support that)

Note, that axis will run at 8x the original speed, so you'll have to tune the motor for that axis.

Do this with the motors still hooked up to the machine.

I think removing the steppers from the machine to test... interesting if this does present the problem, but I doubt that it will - the sound is mechanical, and likely related to the stepper performance in situ with the machine. Doesn't mean the machine is toast - just that you have to track down the system, rather than component behaviour... altogether more fun.