SUNLU AMS Heater Review: A Smarter, Cleaner, and Drier 3D Printing Experience
July 10, 2025 – Francesco Messina, Tuttotek
SUNLU introduces the AMS Heater, an innovative accessory designed to dry filament directly inside the Bambu Lab AMS system, enhancing print quality and streamlining the workflow, especially for multi-material printing setups.
Compatibility and Easy Installation
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Replaces the standard AMS lid (first-generation only).
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Quick, tool-free installation with no permanent modifications or wiring required – a true plug-and-play system.
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Compact design (363 × 278 × 131 mm) minimizes footprint and keeps your workspace neat.
Excellent Drying Performance
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Equipped with a 150W PTC heating element and dual fans to ensure even heat distribution.
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Reaches up to 70 °C in about 20 minutes and maintains consistent temperature.
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Effectively eliminates moisture in PLA, PETG, TPU, and Nylon, reducing stringing, bubbling, and extrusion defects.
Built-in Safety Features
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PTC heating automatically adjusts power near temperature limits.
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Thermostat cuts power above 115 °C to prevent overheating.
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Smart monitoring system halts operation in case of abnormalities and resumes only when conditions are safe.
Real-World Testing
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Over 60 hours of testing with PLA+, PETG, TPU, and Nylon showed perfect results—moisture-related issues were eliminated, and extrusion remained stable.
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Quiet operation (under 40 dB) makes it ideal for home and studio environments.
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Touchscreen is responsive and user-friendly, offering both preset profiles and customizable settings.
Pros & Cons
| ✅ Pros | ❌ Cons |
|---|---|
| Dries filament up to 70 °C effectively | No Wi-Fi or remote control capabilities |
| Compact, easy to install design | Single heating zone limits material separation |
| Triple-layer safety protection | No direct visibility of filament levels |
| Intuitive touchscreen with presets |
Final Verdict
The SUNLU AMS Heater is a smart upgrade for users of Bambu Lab AMS Gen‑1 systems (like the X1C, P1S, and P1P). It offers in-situ filament drying, saves space, and improves efficiency. Particularly beneficial for users working with moisture-sensitive materials like Nylon, PETG, and TPU. With an affordable price tag, it’s a must-have addition for serious makers looking to level up their 3D printing setup.