Remixed adjustable Z endstop for prusa i3

This is a remix of cylgom´s "Z endstop easy adjustment kit for Prusa mendel i3". I changed the upper part a little bit, so the screw mantains verticality better. It uses a m3 nylock nut, a spring and a m3 nut, all inside the moving part. They fit very tight inside, so they need some work to get in. The screw uses another nylock nut to fix the knob.

You will also need the endstop holder from cylgom´s "Z endstop easy adjustment kit for Prusa mendel i3" to complete the adjustable endstop