Remix of Mason Stonehenges springloaded extruder

Ormerod spring loaded extruder.

This is only the Feeder!

Motorside and Tongue Part are available here:
http://www.thingiverse.com/thing:318458/


This feeder was remixed to fit a PTFE tube with the outer diameter
of 4mm


NOTE:
Updated : the inner diameter was changed to 4.2mm so the PTFE tube does not jam.