Filament Spool Holder Mod for Malyan M150 and I3 Clones

This modification of the Malyan M150's (or similar I3 clones) stock filament holder improves the filament feed of the printer. With the original parts, I saw periodic under extrusion in a print due to uneven feeding of the filament. This spool holder change resolved the problem.

Parts:
1. Two printed cones.
2. Two inline skate bearings (608ZZ)
3. One 5/16" nut (M8 nut)
4. One 5/16" Nylock nut (M8 Nylock Nut)
5. One 4" to 5" of 5/16" threaded rod (10cm M8 threaded rod)
6. One 5/16" wing