Fit ring for Inside Spool Silica Container

These rings allow you to fit the excellent Silica Container ( https://www.thingiverse.com/thing:4821360 ) firmly inside your spools.
If you are using a filament dryer you can leave the Silica inside and regenerate it while you dry the filament.

Type A (73mm) - SUNLU, JAYO
Type B (56mm) - Eryone (cardboard), QIDI (bottom ring fits)
Type C (53mm) - Fibrology
Type D (52mm) - 3DJake

If a type fits another manufacturer or you want me to tweak/add a new one you can contact me with the measurement.

Print the ring with the same material of the spool, with zero top and bottom layers and 15-20% hexagon infill.