MP Maker Ultimate / D6 Filament Guide Tower

This is a device for supporting filament as it feeds into the extruder without the need for a Bowden tube. I found that feeding the filament through a length of PTFE tubing presented too much resistance for some filaments causing the extruder to skip. The filament guide tower solved this issue.

The tower has a cutout to insert a 606 bearing and the mast fits into the center of the bearing. The bearing allows the feed-through hole to rotate with the movement of the extruder so filament never binds.