Polymaker Refill Master Spool

The Polymaker Refill gives you the best of both worlds:♻️ Less waste and packaging🎯 Perfectly round edges for smoother prints📦 Smaller box = lower shipping impact Solid/no-holes version available for fast printing. Update March 17, 2026• Updated "Side B" files to fix refill binding caused by an unnecessary gap in the original model dimensions• All other files updated to higher resolution only, no reprint needed• If you have already printed the original models, only reprint the updated "Side B" part Special thanks to community contributors AJAX, Gulsifer, RevHazlett, SpannMagoo, and LayerXLayer for helping bring these designs to life and for sharing their reusable spool design:Community Designed Spool Refill Swapable Printable Watch Instructional Video Here: