Most makers are unsure what to do with empty filament spools. Recycling systems in India are often unreliable, and sending empty spools back to suppliers is rarely practical. As a result, many spools simply end up sitting in a corner for months because you care about the environment but don’t want to throw them away.

That’s exactly why we introduced the Infill Refill System — to eliminate unnecessary plastic waste and promote a more sustainable 3D printing ecosystem.

We encourage you to 3D print your own Infill Masterspool using our 3MF/STL file given below.
Every spool you reuse contributes to a cleaner, greener future for the 3D printing community.
Print More. Waste Less.