Revolutionizing Filament Drying: The Sunlu AMS Lite Heater for Bambu Lab
For any serious 3D printing enthusiast, the battle against moisture-laden filament is a constant one. While standalone drying solutions abound, Sunlu has introduced a compelling integrated option: the AMS Lite Filament Heater, designed specifically for Bambu Lab’s AMS Lite system. Priced at $130, this upgrade promises to keep your filament in prime condition, not just before, but throughout your printing process.
Seamless Integration, Minor Hurdles
The Sunlu AMS Lite Heater stands apart from traditional filament dryers by directly integrating with your Bambu Lab AMS Lite. This means your AMS Lite transforms into a fully enclosed, heated environment, ensuring continuous drying. While the initial thought of “splitting the AMS apart” might sound daunting, the assembly process is surprisingly straightforward, requiring only a few screw changes and two wire connections. The unit cleverly draws power from the printer itself, allowing for heating even when the printer is off, or printing without heat. The integration is largely elegant, though the reviewer noted minor alignment issues with a couple of screw holes and a ‘fussy’ plastic cover.
Precision Drying at Your Fingertips
This intelligent heater offers six preset temperature and humidity settings tailored for common filament types: PLA, PETG, TPU, ABS, PA (Nylon), and PC (Polycarbonate). For those who prefer fine-tuning, manual controls allow temperatures between 35°C and 70°C and humidity levels from 25% to 50%. A default 6-hour heating timer is included, after which the unit intelligently reactivates if humidity exceeds 50% to maintain optimal conditions. During operation, the unit remains warm to the touch but crucially does not leak excessive heat into the surrounding environment, nor does it generate significant noise.
Performance & Practical Considerations
The reviewer, residing in the less humid San Francisco Bay Area, observed no dramatic improvements in print quality, suggesting that the benefits of filament drying are most pronounced in high-humidity environments. However, the continuous drying during printing is a significant advantage that could yield noticeable improvements for users in more challenging climates. The article includes visual comparisons of various filaments (Polymaker PETG, Bambu Lab PETG HF, Polymaker PETG, Polymaker PLA Pro, Sunlu PLA+ 2.0) before and after drying, though specific details on the visual differences are not elaborated.
Space and Filament Compatibility
One practical consideration highlighted is the need for adequate side clearance. The heater doors require space to fold down, and with Bambu’s relatively short PTFE tubes, the reviewer found themselves rotating the entire unit to access the side facing the printer. More critically, the design of the AMS Lite Heater, which heats all loaded spools together, presents a challenge for users who typically mix different filament types within their AMS. Heating PETG to its optimal temperature, for instance, could inadvertently melt or fuse a co-loaded PLA spool. This suggests the unit is best suited for users who primarily print with a single filament type at a time or are mindful of their loaded materials.
The Verdict: A Smart Upgrade for Dedicated Users
The Sunlu AMS Lite Filament Heater is a clever, user-friendly device that effectively addresses the challenge of filament moisture. Its seamless integration with the Bambu Lab AMS Lite maintains a compact desktop footprint, making it an attractive proposition for A1 and AMS Lite owners. While its full benefits may be more apparent in humid climates, and careful consideration is needed for mixed-filament setups, it represents a thoughtful evolution in 3D printing accessory design. For those committed to achieving the highest quality prints and extending filament lifespan, the Sunlu AMS Lite Heater offers a compelling solution.
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