I have a pmdx control box and changed over to the ess smoothstepper and now in vcarve all the carvings are reverse or a mirror image. I had pmdx usb motion controller and didnt have this problem till switching motion controllers. I have tried a couple post processors in vcarve and feel its not in vcarve. It is carving as if you're looking from the bottom. I am trying to carve Arkansas and the Mississippi river is on the wrong side (:   All of the axis are moving in the right direction with the keyboard in Mach 4. It is oriented right on the Mach 4 screen, but carving reverse. Any help would be greatly appreciated.