Problem: My z-axis will plunge to a depth of 1" or 2" or more, then it starts running the program like normal.
or the Z-axis will not re-track to above plain, then it moves to next position.
The problem started with in the last few months ago. I initially blamed it on the openbuilds anti-blacklash lead screw block (it was over a year old, and I thought the lead screw was just falling though or not picking up when it retracted) I replaced this. But that has not fixed the problem, it seems to occurs every time I attempt to run any gcode now.
note: ground control thinks the mill is at 0.4287 inches, but the next picture shows what depth was actually plunged to.
Any help would greatly be appreciated.