Originally Posted by
Thomas91
Good day! I have a CNCest 6040 Chinese 4 axis machine. I have been using it for a month now. There were problems. The spindle accelerates and starts to emit a strange squeaking sound similar to connecting old dial-up modems. It doesn't seem to affect the work. But still I'm afraid that the spindle may fail. The second problem: the CNC stops at the moment of work, freezes, then continues to work. When it freezes for more than a second, it skips steps and continues to malfunction. I do not know how I can determine the problem in the mach3 or in the controller. Earlier, I will unsubscribe that I changed the settings in the pins and ports directory in mach3, removed the low voltage checkboxes for stepper motors. I did this because the machine was losing steps and was constantly zeroing on the z-axis. By checking these boxes, the loss of steps stopped, but the above problems began. I attach a photo of the controller and drivers.