Thanks guys, I know about rapid gaps and homing limits and I set them in my Vectric programs. I will put it this way, even if I have no G Code loaded in Mach 3 and I have X,Y,Z all set to zero, then I hit the return to Zero icon it will still lift 1" and then go back to zero. As I have stated when I load the G code and set X,Y,Z to zero it lifts an 1" comes back down to the homing limit (10mm) and then heads off to cut the job, cheers Paul.