UP! / Afinia Filament Spool Holder

Replacement Filament post for the UP! or Afinia 3D Printers. Designed to handle 700g filament spools from pp3dp and 1kg spools from Afinia, Octave and 3DD.

This design requires 12 - [5/16" ball bearings](https://www.amazon.com/Slingshot-Piece-Inch-Steel-Ammunition/dp/B00YSVRZB4/ref=as_li_ss_tl?ie=UTF8&qid=1449986461&sr=8-9&keywords=slingshot+ammo&linkCode=sl1&tag=whirligh03-20&linkId=f17be668d10658b142b3120a4d5b1aed) placed into the spool holder for it to work. (I used 5/16" slingshot ammo