Still having a problme with the "GOTO Z".
I have z safe progrmed as + .500" (setting screen), top of material is set for 0.0,  cuts are made at -.25.  When I hit "go to Z" the cutter dioes not raise first.  X&Y complete first, Am I using th co ordnate system wrong.

The safe Z is machine coordinates so if your Z goes from 0 to minus then you can not have a positive for the safe Z as it would be above the fully home position. Set your safe Z to 0 or less and it should work, I have mine at -5mm and it works perfectly.

Hood

Also... go to the config menu and select 'logic'  make sure the 'use safe Z' box is checked.  If it's not, check it and relaunch Mach 3

Sid