Through Manual travel all limit switches set fine. home is front left corner fine. when i travel from home into cutting are all dros read negative numbers how do I reverse the polarity of these, making them positive and know where to cut?

Interchanging the leads of one of the stepper motor windings will reverse the motion. However you then will need redefine the IO configuration to swap the limit switches and invert the home switch input polarity. (Assuming they are working correctly now)  Don't forget to mark the changes on your wiring diagram.

That worked thanks