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Since its launch in 2025, the SUNLU Third Generation Reusable Spool has quickly become a favorite among 3D printing enthusiasts, especially those using Bambu Lab AMS/AMS Lite systems. Many users who made the switch from traditional cardboard or single-use spools are now sharing consistent feedback: this spool delivers on its promises of durability, eco-friendliness, and smoother filament management when paired with SUNLU Refill Filament.
If you're tired of throwing away empty spools, dealing with moisture issues, or experiencing jams during multi-color prints, the combination of SUNLU’s third-generation reusable spool and their high-quality refill filaments offers a practical, cost-effective, and sustainable solution that thousands of makers are already enjoying daily.
Why So Many Users Are Switching to SUNLU’s Reusable Spool System
Traditional filament spools create unnecessary waste and headaches. Cardboard versions absorb moisture easily, while many plastic spools end up in the trash after one use.
The SUNLU Third Generation Reusable Spool (φ200mm × 55mm) was designed specifically to solve these pain points. Its detachable, high-strength construction allows repeated assembly and disassembly, making it ideal for loading SUNLU Refill Filament (spool-free coils) again and again.
Users frequently highlight how this system has reduced their plastic waste dramatically. One common comment: “I used to discard a spool every roll. Now I reuse the same SUNLU V3 spool for 10+ refills, and it still looks and performs like new.”
Top User-Reported Benefits of the SUNLU Third Generation Reusable Spool + Refill Filament Combo
Here’s what actual users are experiencing after months (and in many cases, over a year) of regular use:
- Excellent Bambu Lab AMS Compatibility The optimized size and low-friction design make the third-generation spool work seamlessly with Bambu Lab AMS and AMS Lite. Many users report smoother feeding, fewer retraction issues, and reliable multi-color printing compared to older SUNLU spools or cardboard alternatives. It also pairs well with Bambu Lab refills, giving users more flexibility.
- Superior Drying Performance The multi-hole design significantly improves airflow. Users who dry their filament regularly notice faster and more even moisture removal — especially beneficial for PETG, Nylon, and other hygroscopic SUNLU Refill Filaments. “My PETG prints much cleaner now that I can dry the whole spool effectively without taking the filament off,” is a recurring piece of feedback.
- Easy Filament Switching with Cable Tie Slots The built-in cable tie design is praised for preventing tangles when swapping colors or pausing prints. AMS users particularly appreciate how simple it is to secure the filament end on a SUNLU Refill and quickly switch rolls.
- Accurate Filament Tracking The integrated weight scale helps users monitor remaining filament precisely when combined with slicer data. This has helped many avoid mid-print failures on long or important projects.
- Durability and Temperature Resistance Made from robust, eco-friendly materials, the spool withstands repeated use, drops, and drying cycles without warping. Users appreciate the clear temperature warning label that helps extend the spool’s lifespan.
- Clear Printing Parameters on Upgraded Labels The informative labels with recommended nozzle and bed temperatures make setup faster, especially for beginners using different SUNLU Refill Filament types (PLA, PLA+, PETG, etc.).
Cost Savings and Environmental Impact Users Love
Pairing the reusable spool with SUNLU Refill Filament brings clear financial and ecological advantages. Refills are typically more affordable per kilogram than spooled filament, and reusing one high-quality spool multiple times cuts down on both cost and plastic waste.
Many users mention saving several dollars per roll while feeling better about their environmental footprint. “I’ve gone through over 15 kg of SUNLU refill filament on just two third-generation spools — the savings add up fast,” shared one active maker.
The spool’s compatibility with other spool-free filaments (including some Bambu Lab refills) adds even more value for users who like to mix brands.
Who Benefits Most from This System?
- Bambu Lab AMS users looking for reliable, jam-free performance
- Eco-conscious makers wanting to minimize waste
- Frequent filament switchers who value quick and tangle-free changes
- Bulk buyers who print a lot and want lower long-term costs
- Users who dry filament regularly thanks to the improved multi-hole design
Whether you print functional parts, prototypes, or artistic models, the combination of the third-generation reusable spool and SUNLU Refill Filament consistently earns positive feedback for reliability and convenience.
Technical Specifications (Third Generation Reusable Spool)
- Dimensions: φ200mm × 55mm
- Material: High-strength, waterproof, temperature-resistant eco-friendly polymer
- Compatibility: Bambu Lab AMS/AMS Lite, most standard FDM printers, spool-free/refill filaments
- Key Features: Detachable design, multi-hole drying, cable tie slots, built-in weight scale, clear parameter labels
SUNLU Refill Filament is available in popular materials including PLA, PLA+, PETG, and more, wound neatly for easy transfer onto the reusable spool.
Real User Tips for Best Results
- Load the refill coil carefully while keeping the plastic straps on initially for stability.
- Use a filament dryer to take full advantage of the multi-hole design.
- Secure the filament tail with a cable tie when not in use.
- Check the weight scale before starting large prints.
Many users recommend buying a few extra reusable spools so you can keep multiple colors or materials ready to go.
Ready to Upgrade Your Filament Management?
If you’re already using the SUNLU Third Generation Reusable Spool, the experience with SUNLU Refill Filament keeps getting better with every roll. The combination offers a cleaner, more reliable, and far more sustainable way to enjoy 3D printing.
Explore the full range of SUNLU Refill Filaments and stock up on additional third-generation reusable spools in the store. Many users start with a few spools and gradually build their collection as they see the benefits firsthand.
Have you tried the SUNLU third-generation reusable spool with their refill filament? Share your experience in the comments — we’d love to hear how it’s working for your prints!
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