Prusa i3 Endstop Holder Z-Axis

This end stop holder for z axis on Prusa i3 gives better reliability.

In my case the clamp type mount finally broke (see picture) after annoying me some thousand times by miss adjustment what usually led to failed prints or recalibrating the leveling of the x axis and the printbed.

This end stop holder simply rests on the flans of the left stepper. The end stop PCB is screwed on.

=> See also my other Prusa i3 reworks in [my Collection](http://www.thingiverse.com/7Steam/collections/my-pr