Model adds weight to reusable bamboo spools, for use in the ams,

without interfering with the quick loading of refills and staying flush with the outside.

This version uses an empty geometry to hold concrete for example.

No supports needed, printed with pla and petg.

See alternate versions:

With Screws

https://www.printables.com/model/1103010-bambu-reusable-spool-weighted-insert-with-screws

With Silica

https://www.printables.com/model/1103257-bambu-reusable-spool-weighted-insert-with-silica