November 5, 2025
Description
This guide is designed specifically for the SUNLU S1 Filament Dryer, providing a clean and secure way to route filament using an *ECAS04 Bowden connector. It ensures a tight PTFE tube connection while maintaining optimal drying efficiency. The part positions the tube upwards, leaving a tiny gap in the lid to allow a small amount of fresh air to enter, improving drying performance and preventing humid air build up inside the dryer.
*UK Amazon Link: https://amzn.eu/d/7IRH7Pn
The design keeps your setup neat, eliminates the need for temporary fittings, and makes switching spools more efficient.
This part must be printed in PETG or stronger materials such as PETG CF, ABS or ASA to withstand heat from continuous dryer operation and avoid deformation.
Material recommendation: PETG minimum
Fitting: Accepts an ECAS04 Bowden connector for secure PTFE tubing
Orientation: Mounts facing upward, aligned with the top of the S1 lid
Ventilation: Leaves a small intentional gap for air circulation during drying
Minimal supports are required. The model fits neatly into the front of the dryer, using the screws that already already present to remain stable even with repeated use.
A simple yet highly functional addition for anyone using the SUNLU S1 Filament Dryer with an external spool or AMS setup. It improves filament routing, drying consistency, and overall usability without modifying the dryer housing.
Perfect for makers who value tidy cable management and consistent print quality.
License:
Standard Digital File License
Ollie
