Bowden Extruder for Robot Digg

I have a Robot Digg extruder:
http://robotdigg.com/product/70/MK7-Molded-Drive-Block
for a little while, but I have not been able to use it, in a Bowden configuration, so I finally got around to designing this.
The OpenScad file is included, but quite messy,
I did have a fillement runout during printing,
But still good.
I would recomend printing at a high infill, I printed this @ 40%,
which was not quite high enough for M5 tapping.
So I had to oozzee some Super glue in !!
Enjoy
Ceri