Here you go TP,

Go to config ports and pins input signals  in input signals stroll the to  THC UP and THC down  enable both enable Emulated then set a hotkey for up and down this will control your up and down with the keyboard hit apply and go to Mill Options check mark Allow THC UP/DOWN Control even if not in THC mode

HIYA HOOD, Tried that but did not see where it affected the z position but I did not try it on a machine.

BUT that is not going to be effctive IF we cannot "control" the amount it moves up or down . When engraving moves of .001" are required to keep the engraved lines looking crisp.

SOmething along the lines of INC STEP jogging or an analog control will be needed. I THINK(;-)

The engraver he is talking about is an HPGL system that take the HPGL printer output direct from a GRAPHICS program and uses it to drive the engraver controller in realtime. SO those type adjustments xyz on the fly could be done in a realtime senario.

(;-) TP