Let me preface this by saying there have been multiple occasions where my X,Y zero point has “moved” between cutting operations. In one instance I was cutting a 3d relief and I had set my xy zero point, the roughing pass finished and the software (Carbide Motion) asked me to swap bits for the finishing pass, it use bit setter to set Y zero and then when it started the finish pass it was cutting about an inch to the right. I stopped it, checked xy zero and something had indeed shifted the x about an inch to the right. There are other scenarios where I have to shut everything down between cutting operations (various reasons, as an example I needed to leave the house for a couple days). Another scenario is where I do a cutting operation, have to remove the piece between different cutting operations and when I put it back on the table (in the same spot using stops) I don’t want to have to reset XY with probe or manually, in some cases the cutting operation has removed stock that prevents me from setting it easily. In any case, is there a way to set or find the “global” XY coordiate or something like that where I can get back to a saved XY zero point even if I have reset it for any reason. Lets say I start a job, I want to save the XY zero so that I can run a different job with a different XY zero, then go back to the initial job and set the XY zero to what was saved without having to reset manually or with probe. Hopefully I’ve explained well enough that it is understood why I would need this option.
You can create a Quick Action that will remember your X-Y zeros for you.
2 Likes
Another lesser known feature is that you can click the big “Position” on the top left of the Jog screen. This will toggle to “Machine Position” which is the absolute coordinate system of the machine.
The quick action is probably the most user friendly way to save a position but knowing how to easily find the machine coordinates can be useful on occasion 
I’ve had to same issue. my zero absolutely moves…sometimes i even see the machine skip. so this is a very helpful question.