Silica Dryer Spool Insert v2

Version 2 of an insert for a standard BambuLab Spool that can be filled with silica/desiccant beads to be dried in a filament dryer.

Includes a convenient snap-in funnel for easy filling and transfer of beads into other containers.

Fully enclosed so can be used with filament dryers like the Eibos Polyphemus that rotate the spool.

Drying time 6-8 hours on 70c for a full container (in Polyphemus dryer)

Improvements over v1:
- larger diameter so it can now hold ±550 grams (vs ±400 grams)
- 1 mm taller for tighter seal against spool cap to prevent spilling contents
- bottom indicator to easily identify the close bottom vs open top when opening your spool
- funnel now comes with a spout for pouring beads out and a funnel to easily fill it

No supports needed.
Please note, it is essential to use materials that can withstand higher temperatures, such as PETG, PolyCarbonate, or similar high-grade plastics. (not PLA!) Some ABS/ASA brands may shrink causing tolerance issues if you don't calibrate slicer compensation for this.

There's an STL for a version with thinner and more slots (1mm instead of 1.5mm for regular version) for use with smaller silica beads.

(remix of the original v1 model by optimising model and added features)