So I am using the (RepRapDiscount_Full_Graphic_Smart_Controller) LCD as an interface to the machine and it has a HOME Z option. Do I use that to touch off Z with the touch plate after homing x and y. Also, then I wonder if I have Z running the wrong direction so that when I see it drop Z slightly at the end of the xy homing it should rather be raising Z slightly at the end of the xy homing.
John