I have a CNC router that I built from scratch and I'm using the Home buttons for Home and X--, Y-- Z++. When I hit REF All Axis sometimes it returns to home fine but other times it does not jog off the limit/home switch enough and it makes the system stop. I'm using leaf type switches for limit switches. Is there a way to change the distance it will automatically jog off of the limit/home switches when sending eveything to home? Thanks.