Older Ender 3 v1, Microswiss DD all metal hot end and Creality V2.4.7 control board. I use the Marlin Firmware service to compile the firmware - not a software guy. So when the printer auto homes the bed and extruder are fine, ( bed-y and extruder-x) but then at the very end the extruder get’s raised about 8mm off the bed (z). Not sure what, I did just getting a little feeble (er) 71’ can anyone point me to a link on setting the “z” offset. Problem is on the screen there is only positive and no negative to move the “Z” axis down, or am I in the wrong screen.
Help TIA