printrite bowden feeder

design is for use with my printrite J-head adaption design,

both versions of the design shown have a filament exit hole suitable for a screw in 6mm push fit connector for either 6mm OD ptfe tube (3mm filament) or 4mm OD ptfe tube (for 1.75mm filament)

v.1 is designed for use with a mk7/8 extruder feeder (alternatively you can use 1sPiRe's own design - http://www.thingiverse.com/thing:1548736

v.2 is designed for use with the original printrite feeder (which saves additional purchase/prin