I have created a 4 inch round jig using Clackshacks jig system. As you can see from the photo below everything I burn is about 2.01 mm too low. I have raised my work and everything is fine. Where is this error coming from. I inserted the cut out of the jig and engraved a circle in the center or what I think is the center.
Clack Shack is a youtube guy. I have watched many of his videos and downloaded his Jig system for Xtool Di Pro. I did use absolute coordinates. After a coaster I noticed that it will not be in the center after Snap to center. I placed the cut out piece of the jig back in and cut a circle a bit smaller than tool.
The larger portion is in the upper side of burn.