I don't recall this ever doing this before but in the last several days I have been getting some funky Z action.
When I normally do a toolchange I manually raise the Z an inch or so then run the carriage over to me, change the bit then do a JH so I can re Z the new bit.
Well what it is now doing is after i insert the tool and JH the Z starts going down toward the material before it moves in X or Y and i have to hit the spacebar to stop it before it goes into the material. Normally it used to just leave the tool at wherever it was in the Z then move in the X,Y to the home position.
I haven't upraded to a newer version or changed anything lately....
Any idea what is going on?