Check out this reimagined version of Bambu's Filament spool, featuring hexagonal patterns that significantly reduce filament usage while maintaining robustness.
The holes for the filament around the rim are inclined, ensuring a smoother path without imposing sharp bends. Moreover, the increased number of holes enhances distribution along the circumference.
This design seamlessly swaps in for the original Bambu rims.
Please note: the spacing shim is intended for placement inside the spool to secure both halves together. While my experience hasn't necessitated its use due to the snug fit, it's recommended by Bambu and included accordingly.
I recommend to print with PC or Nylon (or ABS) if you plan to use in a dehydrator.