Originally Posted by
glenthemann
Another major difference is the use of G50Z instead of G120 to set absolute Z zero. Then you use G50W to shift the z zero for your tooling rather than in tool geometry and the axis specificed adjusts accordingly. As far as ive read so far you cannot command a G50 shift when G120 is set on a star, and it is not used in the star programming on our machine which I am very new to, so forgive me if Ive made some errors.
I cant really think of any more glaring differences, ive noticed that a lot of people program in a bunch of different ways though so I hope I helped a bit,
Cheers'