It can only happen to a beginner and I can’t find out why. Have been working with Mach3 in the last few days and all is good but today when I posted my code on Mach3 the screen on Mach3 at the top right of the screen posted my cut at the top right quadrant vs at the bottom left as I had it in my CAM.

As I always do I copy the g-code from my CAM and paste it on Mach3 in “File/Load g-code” and before it always used to post it in the same quadrant like my CAM but today it post it in the upper right. I could not figure out why so I proceed to do my cut and all was good but very difficult at the beginning to set up my plywood to start the cut.

Before the cut used to start from the origin and down and to the left like in my CAM but now it starts from the origin and up and to the right, quite strange.

Any ideas why?