
Product Description
Upgrade your Bambu Lab AMS (1st Gen) with the SUNLU AMS Heater, the ultimate solution for simultaneous filament drying and printing. Unlike traditional AMS processes that require pre-drying, this upgraded heater enables efficient printing while maintaining filament dryness, saving time and enhancing multi-color print stability.
Featuring an innovative dual airflow design, heat circulates evenly around the filament area while protecting the AMS feeding motor from high temperatures. The system achieves a temperature of 70°C within 20 minutes, preventing localized overheating and filament deformation.
The smart humidity control monitors and maintains optimal filament conditions automatically. Users can set desired humidity levels (25%–50%) and temperature (default 55°C), with intelligent alarms to prevent overheating, fan malfunction, or temperature failure.
Installation is simple: loosen four screws, replace the cover, and tighten — completed in just 2 minutes. The heater integrates seamlessly with AMS Gen 1, supporting stacked 16-color printing while saving desktop space.
Additional features include triple protection safety, auto shutoff, customizable drying parameters, and compatibility with up to 4 filament rolls (1 kg each). Its compact design, efficient heating, and reliable operation make it perfect for makers, hobbyists, and professional multi-color 3D printing enthusiasts.
All-in-One AMS Gen 1 Upgrade
Keep your filament dry, prints stable, and workspace tidy. Enjoy reliable multi-color printing with minimal failures and optimized efficiency.


Better Prints with Controlled Drying
Prevent moisture-related defects like bubbles, stringing, and layer separation. Keep filaments dry for smoother, stronger, and more reliable prints.
Save Space & Streamline
Stack multiple AMS units with SUNLU Heaters to maximize desktop space, keep filaments dry, and ensure stable, efficient multi-color printing with up to 16 colors.

What's in the box
- AMS Heater
- Hinge*4
- Hexagonal Screws*8
- Hexagonal Screwdriver*1
- Power Cord*1
FAQs
Q1: What filaments can I use with the AMS Heater?
A1: SUNLU AMS Heater supports PLA, PLA+, PETG, WOOD, HIPS, TPU, ABS, PEBA, ASA, PA, and PC. Controlled drying prevents moisture-related issues like stringing, bubbles, and weak layer adhesion, ensuring smoother, stronger prints.
Q2: Can I print while drying filament?
A2: Yes! Unlike standard AMS units that require pre-drying, the AMS Heater enables simultaneous filament drying and printing, saving time and reducing failed prints caused by wet filament.
Q3: How many filament rolls can the AMS Heater handle?
A3: It supports up to 4 rolls, 1 kg each, and allows stacking of multiple AMS units, maximizing desktop space while supporting stable multi-color printing up to 16 colors.
Q4: How fast does the heater reach optimal temperature?
A4: The high-efficiency PTC heater reaches 70°C in 20 minutes. Dual-airflow circulation ensures even heat distribution, preventing warping or uneven drying, which helps maintain print quality across different filament types.
Q5: Is it safe to use for long printing sessions?
A5: Absolutely. The heater features triple protection: over-temperature alerts, fan failure detection, and automatic power-off. Intelligent humidity control maintains optimal filament conditions, reducing nozzle clogs and layer defects.
Q6: How easy is installation?
A6: Installation is simple and tool-free—replace the AMS top cover in 2 minutes. The heater fits seamlessly with Gen 1 AMS sealing strips and a moisture-proof design, enabling hassle-free upgrades.
Q7: Can I adjust humidity and temperature settings?
A7: Yes. Use Standard Mode (auto 6h heating) or rH Mode to customize humidity (25–50%) and duration. The heater automatically activates when humidity rises and stops when optimal levels are reached, preventing filament damage.
Q8: Is the AMS included?
A8: No. This product includes only the SUNLU AMS Heater. The Bambu Lab AMS 1st Generation unit must be purchased separately.