Nachrüstlösung für Bambu AMS - SUNLU AMS Heater
Author: Robert Stein
Source: 3ddrucklife.de
Product Overview and Functionality
The SUNLU AMS Heater adds a heating function to the Bambu Lab AMS system, ensuring the filament stays dry during printing. The heater module warms up all four filament spools simultaneously, making handling easier. However, this limits flexibility for different materials. The article explains its structure, operation, and future outlook.
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Product Features
The SUNLU AMS Heater is placed directly on the AMS housing and utilizes the existing power supply. It heats filament spools to around 55 to 65°C to reduce moisture. Unlike the Eibos Tetras, which uses four separate chambers with independent temperature control, the SUNLU heater controls one temperature for all spools. While this saves on control components, it doesn’t allow for independent adjustments for materials like PLA or ABS.
Technical Implementation
Installation is simple as there is no need for an additional control box. The module replaces the AMS cover and connects via a plug contact. Inside, there is a heating film controlled by the AMS mainboard. There are no details on active moisture removal via a fan, though some community members add external fans to improve airflow.
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Comparison with Eibos Tetras
The Eibos Tetras divides the AMS into four separate heated chambers, each with its own temperature regulator. This allows users to dry each spool individually. The SUNLU Heater, on the other hand, has a limited control system, meaning users must make a compromise when using different materials within the AMS. Eibos operates independently, whereas the SUNLU Heater is only compatible with AMS version 1. Owners of older AMS models can upgrade but lose fine-grained control.
Practical Implications
For mixed filament setups (e.g., PLA and Nylon), a middle temperature must be chosen. Filaments with narrow temperature tolerances, such as TPU, benefit only partially from the system. Third-party spools may differ in diameter, causing errors if the AMS sensor doesn't correctly clamp the filament. Community adapters can solve this issue but do not provide an official warranty.
Community Feedback
Users are asking for a version for Creality's CFS system, which Sunlu does not currently offer. DIY enthusiasts are replacing the AMS cover with a sealed module and adding external fans, which improves drying but voids the warranty. Critics highlight the lack of airflow control and predict long-term damage due to uneven heating.
Summary
The SUNLU AMS Heater provides an affordable upgrade for AMS-1 owners, simplifying the drying process but requiring a uniform temperature for all spools. Those using only one filament type in their AMS and aiming for a budget-friendly option will find it effective. However, users with mixed filament types and high demands for airflow control might opt for premium modules or custom-built solutions.