[routermaker]

Hi All,

Thought I was getting pretty good at Mach3!

I just replaced my ancient PC and moved to an old PC plus UC100, loaded my configurations XML but now the Y Axis is backward (everything else is right).

I have tried reversing my Y Axis a couple ways: Reversing the Homing/limit tab check box and Toggling Dir +/- (general)

Background: This is a Chinese "IND_CNC" ("industrial cnc") which has been great for years. It is a large (5'x10') gantry machine with 2 Y axis motors. Since it worked for years as is, I have a bias against digging into the control and switching motor wires.

When I reverse the X axis via the homing/limit tab it immediately reverses, same with Z.

Does anyone know what might be preventing the Y axis from reversing in software?

Thank you for your thoughts!

David

[CitizenOfDreams]

Is the Y axis moving backwards while jogging too, or only while homing?

If the axis jogs in the wrong direction, then change Config - Ports and pins - Motor outputs - Y axis - Dir LowActive.

[routermaker]

Yes Y Jogs in the wrong direction, runs a program in wrong direction. Y is just flipped. I will try this, I think I already did but I will report back. Thank you!