Hello, I'm François and coming from Belgium. Last year, I used Mastercam with this machine : http://fraisage-cnc.fr/fraiseuses-cnc-verticales/high-z-s-720.html Our post-processor can't read G-code related to drills (G80, G81, ...). So we managed to modify the settings to get an iso code with simple instructions (go X,Y and then go down and up and here is the hole...) instead of G80, G81, etc. Unfortunately we can't do this again because we don't find the right setting. I've already tried this without success : http://www.planet-cnc.com/faq/mastercam/ (last picture) Regards, Thank you, François