x2 Spool with Built in Bowden motor mount

This in an update to my bowden spool that now accepts spools much easier. Now you just drop a spool in... load the filament and feed it thru to the hotend. I have been using this for about 8 months now and it works flawlessly. Spool sits on top of two rods that ride on bearings for smooth operation.

Comes with
Mount for any Printrbot Extruder
Bowden adapter

Requires
4 standard 608 bearings
a number of standard hex head screws and nuts. (everything will press fit but