Hi, im bildiying a 3d printer and i have a very big problem, the endstop don’t work! Let me explain, i use a 3 pin endstop that only use 2 pins (c and NC) (c on negative and NC on signal) , i use marlin, AND when im setting home from the Arduino lcd Smart full graphics it Works perfectly, but when im using pronterface the endstops doesnt work! I use the comand M119 and almost always ir shows open on the 3 edges, rarely ir days trigered … I dont no what to do. Sorry for my bad english.