Universal Spool Clip | Flexible Tension Fit

BOM: Printed with ROSA3D Starter PLA Red

Tired of your filament unspooling and tangling after you take it off the printer? This clever, flexible tension clip is the perfect solution to keep the end of your material exactly in place! Instead of trying to thread the filament through those tiny, frustrating holes on the edge of the spool, just place the strand in the built-in notch and wedge the clip directly between the inner walls.

Thanks to its zig-zag, spring-like design, the clip flexes and locks securely by friction. It features small barbed teeth that grip the cardboard or plastic tightly, preventing it from unwinding. This tool is completely universal—it works perfectly with most standard plastic and cardboard spools on the market (including eSun, Polymaker, Elegoo, Creality, Prusa, Anycubic, Rosa3D, and Bambu Lab).

Key Features:

• Tension-Fit Design: The zig-zag profile acts as a spring, adapting to the spool's width and wedging itself firmly between the walls.
• Universal Compatibility: Fits standard spools from the most popular 3D printing brands, working flawlessly on both cardboard and plastic edges.
• Locking Teeth: Special textured ridges increase grip, preventing the clip from slipping out of place during storage.
• Tangle Protection: Reliably holds the end of the filament, protecting your future prints from catastrophic extruder jams.

Printing Instructions:

• Orientation: Print entirely flat on the build plate, exactly in its default orientation.
• Supports: NONE.