Universal Filament Spool Adapter for A1 Mini
Print Profile(3)
Description
Tired of filament spools wobbling, rattling or not fitting properly on your Bambu A1 Mini?
This snap-fit spool adapter solves that problem cleanly and reliably.
Designed to adapt larger inner diameter spools (like Sunlu and similar) to the original Bambu A1 Mini holder, this model eliminates play and stabilizes the spool during printing.
No tools. No screws. Just snap and go.
New update – locking washer added
I added a split washer/spacer that improves stability and helps prevent the drum from sliding on the holder.
This part is recommended when using the adapter, especially with larger or looser-fitting spools.
It keeps the assembly more stable and reduces the chance of unwanted movement during printing.
Why this washer is useful:
- improves drum stability
- helps prevent sliding
- keeps the spool better centered
- easy to install as a split 2-piece part
Recommended use:
Use the adapter together with the washer for the most stable setup.
⚠️This adapter is designed for the following spool inner diameters:
• ~54mm – eSun spools (tested)
• ~74mm – Sunlu / 3D Printer spools (tested)
⚠️ Please measure your spool inner diameter before printing to ensure proper fit.
FEATURES:
• Two-part snap-fit design
• Self-aligning guide pins
• Anti-wobble fit
• Easy assembly and removal
• Compatible with common large-core spools
• Clean, strong geometry optimized for FDM printing
PRINT SETTINGS:
• Layer height: 0.2 mm
• Material: PLA / PETG
• Walls: 2–3
• Infill: 20–25%
• No supports required
HOW TO USE:
1. Print two identical halves
2. Place around spool core
3. Snap together
4. Mount on printer
This adapter is designed for real-world use — fast prints, strong locking, and reliable performance.
Tested with Sunlu spool , 3D Printer Filament Smart and Profesional Lab – fits tight and stable.
License
You may create derivative works based on this object, provided that all such derivative works are published exclusively on the MakerWorld platform and include proper attribution to the original creator. You may not share, upload, host, distribute, or publish this object—or any derivative work of this object—on any other digital platform, marketplace, or distribution channel. Commercial use of this object and any derivative works is strictly prohibited. This includes, but is not limited to, selling, renting, sublicensing, or using the object in any context in which you receive monetary compensation or other financial benefits.
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