Parametric Makerfarm Prusa i3v micto adjustable Z stop.

This is an OpenScad parametric design for a screw based micro adjustable Z stop for the Makerfarm's Prusa I3v. It works great on my machine but if you want to change it just tweak the parameters and recompile in OpenScad to generate the STL.
The pieces are eazy to print. I used PLA and it works just fine. One thing to remember is to *enable material support* for the two M5 screws head sinks.
I installed it using the stock screws that came with the I3v (cut the end of its metal lever, not su