Not another dessicant tray for 4L cereal boxes?!

Oh No! not another dry box?
After extensive testing and experimentation with various 4L cereal box filament dry box designs, I've developed a reliable solution for 3D printing enthusiasts struggling with filament moisture control who order maybe slightly different cereal boxes in the Netherlands.

Design Reasons:
Many existing designs failed to fit my cereal box, so made this one myself.

Key Features:

• Designed for standard 4L airtight food storage containers (see link at the bottom)
• Accommodates multiple filament spool sizes
• Integrated desiccant holder 
• Easy filament access and storage
• Desiccant will stay in the box, and not on the floor if you remove the box.

• Optional hygrometer holder.

  
   

   

Printing tips:

• No supports required
• No brim needed
• Fully optimized for easy printing

Smart Design Features:

• Integrated hygrometer holder with customizable text (the one on plate 01, 04 and 07)
• Easily modify text directly in Bambu Studio
• Included signs for most common Bambu Lab filament types

Quick Tip: Simply delete the unnecessary build plates or drag the desired components to your preferred build plate for a streamlined printing experience.

Bonus Feature:

I've added all the STEP files as well if you want to change anything to your liking. 
Original model was made in Solidworks.

Links:

Cereal box (bol.com) 

Cereal box (amazon.nl) 

Desiccant AliExpress

Dessicant Amazon

hygrometer AliExpress

hygrometer Amazon

Square hygrometer AliExpress

Future features:

Hygrometer housing with vertical holes get's standard bambu filament names.

addition for bearings to make your filament roll smoothly as a filament feeder.

Updates:
2025-03-16 Vertical and angled holes for the different humidity sensors available
2025-07-15 Square hole for square humidity sensor available
2025-12-23 Added link to square hygrometer