without a photo or other details my first thoughts are
either you have disturbed the limit switch or its wiring
or with vacuum dust collection static discharges to the new metal mount are triggering the false limit signal
John
I've been using my diy cnc router for about 7 years using a homemade wood router mount. I just today replaced with an aluminum mount and now am getting a limit switch trigger when cutting.
Similar Threads:
without a photo or other details my first thoughts are
either you have disturbed the limit switch or its wiring
or with vacuum dust collection static discharges to the new metal mount are triggering the false limit signal
John
You have noise from the spindle before it was isolated from the wood mount, Try adding a Ground wire back to the Main power supply input Ground all Grounds should have a star point
What type of spindle do you have and How is it wired ???
In Mach3 General Config you can make an adjustment to the Debounce this will help but won't solve the problem
Mactec54
Almost certainly ground loops and bad earthing practices. Read up on how to correctly ground all parts of the machine, especially the spindle motor and power supply.
Check the ground pin at the spindle is actually connected to something. Often chinese spindles have a forth pin but it is not connected. Connect to the body of the cable socket body.