I have a gantry configuration router with stepper motors and USB RnRMotionController, running purchased and licensed Mach3 on a Windows 7 Thinkpad. Laptop has all the power management and screen saver turned off, runs continuously.
On several milling jobs recently I've experienced the Mach3 GUI stops updating the g-code display somewhere in the middle of the program. The CNC motion program actually completes successfully, except last line which stops the spindle fails to execute. I have to exit Mach3 to clean things up. Yesterday had a more severe variant of the failure where it corrupted my mill.xml file.
So far when things screw up they don't seem to cause a motion error. I am thankful for that!
The jobs are 3D milling, with pretty big files up to ~80,000 lines of g-code.
Thoughts? Thanks!