Deltaprintr Extruder Upper Block Threaded Costumizable

Screwlibary from syvwlch http://www.thingiverse.com/syvwlch/about !!!

This is a remix of my original Extruder Upper Block wich was made with Fusion 360 and had metric pipe threads
This time I used OpenScad
It's my first OpenScad design and my first configurable for thinigverse's Costumizer

I could have used the same thread but the Screwlibrary made by syvwlch is great and so I designed it using his library. His library is under "Creative Commons - Attribution - Share Alike" so I did th