Filament Drybox - For Kitchly, Utopia, Amazon 4L

Minimalist Design. Maximum Compatibility.

I was looking for the cheapest and most available cereal containers to build filament storage. In my area, the cheapest one was this one that is often white labelled as Kichly, Utopia, Amazon 4L. I was hoping to find a nice design on maker world however all the designs I found required the spool to simply rub against the bottom or a flat plastic surface. I wanted a low-friction roller system, but I quickly realized why few existed: these containers are incredibly narrow at the bottom.

Instead of giving up on my six containers, I looked at the geometry more closely. I realized that by utilizing the natural outward taper of the container as it rises, I could gain the clearance I needed. As a result I was able to accommodate a 68mm wide spool. The 68mm standard is used by the Bambu AMS 2 Pro and covers all the popular 1kg spools on the market so I figured it is good enough for me.

Support Me!

Features

• Taper-Optimized 68mm Capacity: Specifically engineered to use the container's outward taper, allowing for a 68mm roller width.
• Active Roller System: Replaces the standard "friction" designs with a low-resistance 608ZZ bearing design, reducing stress on your extruder.
• Self-Centering Stability: The narrow base geometry acts as a natural guide. The spool is physically unable to jump off the rollers. When spun, it automatically centers itself.
• Minimalist "Skeleton" Frame: A high-strength, low-filament design. Material is only placed where structural integrity is required, saving you print time and filament while maintaining a sleek, modern look.
• Precision Tapered Arms: Designed for a perfect friction fit against the container walls, providing maximum rigidity and a "pro" aesthetic.
• Integrated Hygrometer Mount: Features a dedicated housing for the standard round (41mm) digital hygrometer, allowing you to monitor internal humidity at a glance.
• Rechargeable Desiccant Cartridge: A swappable, spill-proof pod for your silica gel. Easily refresh your desiccant without dealing with loose beads at the bottom of the box.
• Easy Assembly: Uses standard hardware (608ZZ bearings) and requires no screws or glue—everything is designed for a precise press-fit.

Specifications

• Compatibility: Cereal Container white labelled under the brands; Kichly, Utopia, Praki, Skroam, Wildone, Vtopmart, Fooyoo, MagiDeal, etc.

  • US  Amazon - https://a.co/d/0iqrW3PA
  • Canada Amazon - https://a.co/d/0cMd4Q3x
  • Australia Amazon - https://amzn.asia/d/05s6NT4a
  • Please comment any links to matching bins for other if you find it anywhere else!
     

  • 

  Look for this shape
  
   

• Filament Type: Tested in PLA. Should work well with anything.
• Max Spool Size: 68mm wide 200mm diameter (Same specification as Bambu AMS 2 Pro)
• Capacity: Holds +60 grams of Desiccant/Silica Gel
• Filament Required: 
  • DryBox - 62 grams of filament
  • Desiccant Cartridge - 25 grams of filament
• Additional Hardware
  • 4 x 608zz Bearings (most common)
  • 1 x Circular Embedded Electronic Digital Thermometer Hygrometer
  • 1 x Cereal Container

DryBox Assembly Guide

Desiccant Cartridge Assembly Guide

Credits / Licensing

• Design by PixelFanLabs – With a curious mind, integrity, and your hands in the soil, you can create anything. 
• License –  All Rights Reserved
  • Personal Use Only: You may print this for your own use.
  • No Redistribution: Do not re-upload or distribute these digital files on any other platform.
  • No Derivatives: Modification of this design—including the removal of the engraved PixelFanLabs signature—is strictly prohibited.