I have modified their post processor.............................the z axis to x, the x axis to z
I'm confused about the type of machine, and why you have it set up the way you do?
Normally, in Aspire, the X or Y would move in and out from the headstock, and the other (Y or X) would be perpendicular to that axis. The Z axis would be a milling spindle moving up and down.
Basically a mill with a rotary axis.
It sounds like you are doing something very different? But I don't know if that's the problem or not.