I have an odd problem that just started - here is my setup and specifics about the issue…
SKR 1.2 Pro
TMC 2209 Drivers
Latest Stock Firmware from V1
Standard - no dual end stops
I have been using Lightburn connected directly to the SKR via USB to cut acrylic with a diode laser and a drag knife mount for cutting vinyl.
Friday night I ran two laser cut jobs and everything was fine. Saturday morning, I made a change to my cut job in Lightburn (just removed a shape) and started the job. It moved about 1/2” and stopped - almost like it hung.
In troubleshooting, I have determined the following details:
I can move the tool head around using the TFT screen, manual commands from Lightburn, and manual commands from Repetier.
I sent a known working gcode file from a previous cut job and it did the same thing (moved a bit and then hung)
A G1 X??Y??Z?? F0 command moves normally
A G1 X??Y??Z?? F4.37 command seems to hang
I can’t tell if it’s actually hanging, or if it is just moving very slow