The Polymaker 3.0 Project eliminated the plastic spool and switched all Polymaker products to a 100% recycled cardboard spool. This initiative was part of Polymaker's commitment to sustainability and reducing their environmental impact as they plastic spools were difficult to recycle. By switching to cardboard spools, Polymaker can help reduce waste and decrease their carbon footprint and customers can easily recycle the cardboard. The project was also expected to raise awareness about the importance of sustainability in the 3D printing industry and encourage other companies to take similar measures to reduce their impact on the environment.

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