after perfect working for 45 min i heard windows resetting USB connection and lightburn quit and moved laser head to 0.0 home killing a 90 min job after 45 min. the PC screen saver started and i do not know if that is the culprit.
How do i make sure nothing like this will ever happen again?
How can i force lightburn to keep USB connection uninterrupted for as long as it is running?
my PC did nothing but streaming gcode to K40/Smoothie.
My PC power & Sleep settings are to keep all up.
I will not start a new long job until i understand what went wrong.