It's been a while since I did any NC programming via BobCad. I have version 18 which is on my old WinXP machine from years ago.
When I set my tool depth settings, I do not get a -Z move with the value I set. If if set the cutting depth to -.5, I get a line that says "G01 Z-.550." If I set the cutting depth for -1.00", I get a depth of -1.5". If I set the depth for -2", I get a depth of -2.5".
I've looked in all the CAM menus to see if there is some sort of offset or percentage that is being added due to some oversight
Best guess was that the NC Set Up file was jacked up some way. I found a version that worked and I am now editing that version into a new one that works with our new machine.