MonoKrom - QtPyVCP GUI for PlasmaC and Mill

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07 Nov 2025 19:53 #338047 by Sandro
Replied by Sandro on topic MonoKrom - QtPyVCP GUI for PlasmaC and Mill
I still have the error “unknown word where unary operation could be” even when I output a .ngc file from SheetCam. I've test with the LinuxCNC plasma post processor for SheetCam. In Monokrom I am using the plasma_gcode_preprocessor (default with Monokorm). I have attached the pre processor log. There everything seems to work. However the LinuxCNC parser seems to be unable to read whatever the plasma_gcode_preprocessor puts out. The error comes from here: github.com/LinuxCNC/linuxcnc/blob/af15a4...interp_read.cc#L1424

Preprocessor log:
Warning: Spoiler!
Attachments:

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07 Nov 2025 20:41 #338048 by tommylight
Replied by tommylight on topic MonoKrom - QtPyVCP GUI for PlasmaC and Mill
It says LinuxCNC post processor but it does output line numbers with N, why?
Mach3 uses line numbers, not LinuxCNC, so try removing them.

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08 Nov 2025 06:07 #338067 by rodw
there should be a specific post processor for Plasmac shipped with Sheetcam (before QTplasmac) Try it and read the file as there are notes at the top.

@Tommy, line numbers in linuxcnc are optional and Sheetcam has settings to generate with and without.

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