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 placed into the spool holder for it to work. (I used 5/16" slingshot ammo since it was cheaper and available in local sporting goods stores)
-- Octave Natural ABS