Old man emu, I'm not sure if you got your end stop switch problem sorted out but I wanted to chime in with my experience. I just got my MakerFarm Prusa i3 8" and had the same end stop switch problem. What I found in my case was that I inadvertently mixed up the connections on the RAMPS board. I had X connected to where Z should've been and Y on X connection… The way I figured it out was I moved Xby dknell - General Mendel Topics