Thank you so much, its 1:00am so its a bit late to start a print but I have the day off college tomorrow so I can test it and tweak it. I just made a small adjustment to reduce the travel of the probe so the offset is -7.6 now and at Z0 gives me just enough room to squeeze a sheet of paper through the gap. Hopefully it should be pretty close from the start (probably much more so than manual levelling). Next thing is to improve my probe, way too much play in it. I was pretty happy with the 0.000700 standard deviation I got earlier but think it can still be better with ball/lead screws and proper probe mount. I'll try not to ask you for anything for a while, I really need to learn how to help myself when it comes to code but I just don't know where to start really.