Adjustable Z Endstop for Prusa i3

A sample was taken: http://www.thingiverse.com/thing:34666
Details have been changed by mechanical End stop. The guides are taken from the old DVD-ROM
Holes drill guide handle 3 mm

Parts List:
M3-10mm - 2 pieces;
M3-16mm - 1 pc;
M3 nut - 1 pc;
M5-45mm - 1 pc;
M5 nut - 1 pc.