We have been able to consistently and predictably cause our Shapeoko 3 XXL to freeze.
The conditions were: The router was turned off and no other machines were running in the shop. All jobs were air cuts. Z zeroing was either via MDI or directly on the surface of the material. X, Y, anz Z limit switches are OFF. HOMING is ON. X maximum is 830, Y maximum is 850.
If no GCode was loaded (immediately after starting Carbide Motion and after homing and zeroing X, Y and Z), then we could not elicit a freeze failure. Control of the router position via the X, Y, and Z buttons in the Carbide Motion Jog screen performed without failure. All rapid positioning functions worked without failure, And repeatedly moving the router to is maximum positions was accomplished without failure. Ran repositioning via Carbide Motion Jog controls for approximately 10 minutes.
If GCode was loaded, then moving the router to its maximum Y- position (furthest Y position from HOME) would cause the machine to freeze. (Again, router is OFF, no other local machines running in the shop.) This failure was consistent and repeatable. Occasionally a failure would also occur when the router was moved to it maximum X- position. Twice a freeze condition occurred when the router was moved to its maximum Z+ position.
To restore control of the router, either of two methods were successful. 1) reload the either the existing GCode file or a new GCode file; 2) recycle the power to the CNC machine (controller and gantry assembly). Both these actions resulted in unfreezing the machine. The preferred method of restoral is #1.
We will be setting the limit switch options to ON and reducing the X and Y maximums to 825. We realize that the extreme real estate will unreachable, but this is only a test.
With this in mind… any ideas? Thank you, in advance for your help.