@dl2jml @ChrisPirillo @exil_inselette The Code to generate these is there. And as the code is also looking for calibration marks - have you tried printing on A4 paper?

I haven’t, as I didn’t find time yet, but please: You’re sounding extremely entitled to something you’ve been given for free. How about helping to debug?

E.g., „I tried printing in A4, I expected this to happen, but I got this result - could you pleas take a look?“