@RogerThat wrote in closed thread:
so, I’m using Kicad to generate my drill files. Maybe my drill file formatting is wrong?
KiCAD puts T0 immediately before M30 in its drill files which breaks CarbideCopper.
According to the Excellon spec I have read, T1 to T9 are valid (or T01 to T09).
I assume T0 is to indicate tool unload.
Just remove the T0 from the KiCAD drl file and it works.
Could Copper be tweaked to ignore T0 ?