These Spool Holder Locking Rings are a simple, fast-print solution designed to keep your filament securely in place and prevent accidental spool pop-offs.

Perfect for the Flashforge Creator 5, but also works great on other printers with similar spool arm dimensions—such as the Bambu Lab A1 and more.

Nothing is worse than checking on a print and finding the spool jumped off the holder, tangled filament everywhere, and a failed print.

This quick little upgrade helps eliminate that problem with a simple snap-on locking ring.

Features:

• Prevents filament spools from popping off mid-print
• Fast print — approximately 2 hours
• Uses less than 55g of filament
• Simple 3-layer design
• Easy beginner-friendly print
• Compatible with other printers using similar spool arm sizes

Assembly:

Super simple:

1. Print all three layers
2. Apply glue between the layers
3. Load your spool
4. Snap onto the end of the spool arm

No complicated hardware. No screws. No printer modifications.

Recommended Print Settings:

• Layer Height: 0.20mm
• Walls: 3
• Infill: 15–25%
• Material: PLA / PETG