Filaments.ca Cardboard Spool Adapter

Spool adapter for our current Filaments.ca cardboard spools. Helping reduce friction and provide a smoother rolling surface, both on the outside edges of the spool and inside the arbor hole. 

This model is easy to print without supports and snaps around the edges of the cardboard spool. It is fixed in place and stopped from spinning by aligning the two window inserts with the window openings on the spool.