Universal Filament Spool - Cuộn nhựa đa năng

The "Solid-Core" Approach This design strips away unnecessary complexity. I created this spool for those who want a reliable, non-collapsible solution that won't fail during long prints.

Key Features:

• Dual-Hole Starter: My signature feature. Two 2.5mm holes placed side-by-side. Just thread the filament through both, and it locks itself by friction. No tape, no mess.

• Zero-Failure Design: No locks to break, no threads to strip. It's built to last and handle the tension of tightly wound refills.

• AMS & Prusament Ready: Perfect inner diameter (55mm) and outer width for seamless operation in the Bambu AMS.