Cereal Container / Box Filament Storage Lid Desiccant Holder

Ideal for long-term filament storage without modifying or drilling your container.


QUICK OVERVIEW

• Purpose: Threaded desiccant lid insert for upright cereal-box filament storage

• Container type: 4 L plastic cereal containers

• Orientation: Designed for upright storage (not inverted feeder boxes)

• Capacity: Holds approx. 1/8 cup desiccant beads

• Seal: Uses the container’s original gasket for an airtight fit

• Design: Simple 2-piece threaded locking system

• Printing: No supports required for standard version

PROJECT BACKGROUND

This is a threaded lid insert for anyone using 4 L plastic cereal containers to store filament in the upright position.

Most cereal-box dry box designs are built to feed filament directly to a printer, which means flipping the container upside down. There’s absolutely nothing wrong with those designs — but in my case, I’m simply storing filament, not feeding printers from the box.

This insert replaces the original hinged lid with a clean, low-profile threaded desiccant holder that keeps moisture under control while allowing the container to remain upright on a shelf.

DESIGN DETAILS

• Fits a round 60 mm opening with the existing gasket left in place

• Holds approximately 1/8 cup of desiccant beads

• Original hinged lid is removed and replaced by this insert

• Two-piece threaded design locks securely into place

• The existing gasket provides the airtight seal — no extra parts needed

PRINTING NOTES

• Printed examples shown were done in PLA using:

  • Standard 0.4 mm nozzle

  • Default slicer settings

• Print orientation:

  • Lid: top down / threads up

  • Container insert: bottom down / threads up

• Supports are NOT required for the standard version

• Slower print speeds are recommended for cleaner threads

ALSO INCLUDED

• A Creality-branded lid version is included for those who want a brand-matching look

  • Enable standard supports

  • Print lid down / threads up so the embossed logo prints cleanly

Suggestions and improvements are always welcome — and as always, pics of your prints are encouraged!

VERSION INFO

v 1.0 - Designed as a simple desiccant-only solution — a hygrometer-ready version may be added in a future update if anybody has a need.

Thanks for looking, and Happy Printing!