Creality CFS Filament Dryer Box (Center-Mounted Design)This filament dryer box was specifically designed for the Creality CFS (Color Filament System) and makes use of the otherwise unused space between the filament spools. Unlike many existing solutions that are placed in front of or behind the CFS, this dryer box is positioned centrally between the two left and two right spools. This location allows the desiccant to work directly within the filament storage area, maximizing its effectiveness.

The box is filled with silica gel beads and helps reduce humidity inside the CFS. Hygroscopic materials such as PLA, PETG, TPU, ASA, ABS, and Nylon particularly benefit from a dry environment, helping maintain optimal print quality and reducing moisture-related printing issues.

The project also includes a matching filling funnel and a printing stand, making it easy and clean to fill the box with silica gel beads.

Assembly

Print all required parts.
Insert the sliding lid into the guide slot of one side panel.
Apply a small amount of super glue to the second side panel.
Attach the second side panel to complete the enclosure.
Fill the box with silica gel beads through the top opening.
Close the opening using the sliding lid.
Place the finished dryer box in the center of the Creality CFS, between the four filament spools.

Features

Custom-designed to fit the Creality CFS perfectly
Utilizes the unused space between the filament spools
Central position for maximum drying efficiency
Easy filling with silica beads
Includes printable funnel and stand
Space-saving design without interfering with filament feeding
Quick and simple assembly
No modifications to the CFS required

Notes

For best performance, use fresh or regenerated silica gel regularly.
Designed for standard silica gel beads.
Only a small amount of super glue is required to secure the side panels during assembly.

Important:

This is how you create the lattice structure in the side panels, which is a common method in the 3D printing world for producing great patterns with minimal effort.

It’s very easy—just deactivate the first and last layers to expose the infill. However, you’ll need to increase the wall height and disable the feature that ensures only one wall is printed in the final layer. That’s all

To start, I recommend the following settings for exposing the infill in this project:

Pattern = Straight lines
Multi-line infill = Yes
Infill = 40%
Only one wall in the top layer = No!!!

Creality CFS silica Filament Dryer Box Center-Mounted Design

0.24mm layer, 2-6 walls, 10-40% infill