Originally Posted by josiahFRCC  i guess at this point I still believe that z would be at the end of the part and negitive is cutting into the part I guess I'm not sure why this program is cutting at z-15.... |
You are referring to the G53 X-2. Z-15.0 line.
G53 is machine coordinates so in fact this move takes the tool 15" from machine home on the Z and 2" away on the X.
This program was written for a Haas TL2 and I use the G53 command instead of G28; G28 would take the machine all the way home which is 40 inches away from the chuck.
The actual cutting moves start at line N7.
The tool offsets are to the finished end of the part which is why line N8 has the tool positioned at Z0.15 just before the G72 canned cycle.
The G72 faces the part down to Z0.0.
Most times you would not need to take off this much material when facing.