I completed most of the extruder today, I simply need a 5/8 spade bit to finish it. Will complete tommorow, Still working on completing the first 3d printable end connector prototype in design spark mechanical. Picture is up.
My previous connectors were made with clay and molded with silicone and high temp resin, they looked like hell but were simply usefull to prove to myself this would work.
If you haven't used design spark you definitely need to check it out. http://www.rs-online.com/designspark/electronics/eng/page/mechanical its a free super simple cad program that is perfect for designing 3d printable objects.