5 model

Free

Mini Garden : wall hanging/vertical garden using leftover spool or cardboard.

Printables

Free

Universal Refill Spool Adapter for eSun Cardboard Spools (78–92mm)

Printables

Free

Snapmaker U1 Recycling Fabrik Spool Holder Adapter

Printables

Free

The Spool Trophy

Printables

Free

Stronghero3D and Geeetech ~74-75mm inner diameter spool adapter to 54mm diameter

Printables