Close. The steps actually are:
• Open Carbide Create (weird since we’re changing Carbide Motion, but OK)
• Help
• About
• Open Data Directory
What I found worked with fewer iterations was to:
• Rapid Position to SW
• Inspect the left and front mechanical collision points
• Jog over as close as I could get without hitting them
• If there is still a gap, measure it.
• Set XY zero in CM
• Rapid Position to NE
• Jog as much as possible to upper right. Note that even if a 1mm jog won’t go, sometimes the 0.25mm or 0.025mm jog will go.
• Write down the current XY position as shown in CM
Now, if you didn’t have a gap at front left earlier, those are the numbers to use.
But, if you did have a gap on either X and/or Y, then add the gap you measured to the XY reading out in CM now.
Now quit CM, edit the json file, and restart CM.
Check and tweak. I only needed one small tweak.
As for machining outside the limits, CM does warn you when travelX and travelY are setup properly:
See this thread: