After pecking 70,000 small holes, my Z axis suddenly decided to lose 0.05 of throw and started dragging the bit around. Has anybody seen this before?
The photo shows the pattern going from bottom to top, and left to right in small strips. The red arrow shows where the Z it lost it and started to not be able to clear the material. Clearance ablove the material was only 0.03, but like I said, it had done plenty of holes before it went south.
Having looked at this particular line in the program, the g-code seems really solid.