Bowden Push fit Adapter for J-head style extruder.

I created this adapter to fit this http://www.thingiverse.com/thing:28430. I have printed 4 of these for my re-designed printer the Z-Max Prusa and Z-Max Alpha. They are dual Bowden Prusa variants small one has a build size of 200x200x254mm and the Alpha is 228x432x254mm (Depth x Width x Height) When I get the time I am going to publish complete machine. I created the design to suit the needs of omnomproject.com