4L Filament Dry Box Desiccant case & Hygrometer

This is a dry box for storing filament.
It uses the 4L Cereal Box sold on AliExpress and Amazon (→Link).
It is compatible with the square hygrometer sold on Amazon (→LINK).

Features

• To enable high-speed printing of the mesh pattern on the silica gel box, the vertical and horizontal layers have been separated.
• The lid opens and closes easily, making it simple to replace the silica gel.
• The hygrometer mount is interchangeable (you can make your own).

Reason for Creation

Until now, I had been connecting a PTFE tube to my dry box to pull filament directly out. Later, I get an AMS. When using an AMS, a PTFE tube is unnecessary. Additionally, the structure needs to allow for easy filament retrieval. Therefore, I created a dry box that is easy for AMS users to use and makes silica gel replacement maintenance simple.

Printing Instructions

• Place the silica gel box (“Box.stl”) with the slanted side facing down. No supports are needed.
• Print the silica gel box (“Box.stl”) at 0.2mm per layer.
• The hygrometer holder (“Sensor.stl”) requires support on the protrusions.
• Use a thin scraper to remove the silica gel box (“Box.stl”) from the build plate.

How to Replace the Silica Gel

• To open the lid, press the area labeled “PUSH.”
• To close the lid, press both ends of the lid with your fingers.

How to Make Your Own Hygrometer Holder

The hygrometer holder is designed specifically for a square hygrometer (44.7 x 25.7 mm). It is designed to be easily interchangeable for those who wish to use a different hygrometer. The diameter of the protrusions is 5 mm, and the spacing between them is 30 mm (measured from the center of the circle).

Translated with DeepL.com (free version)