Stackable Dry Box for Filament

Most plastic filaments should be stored in dry conditions to avoid absorbing moisture. In the Dry Box, like in most other products with similar purpose, such conditions were achieved by using desiccant inside the tightly closed container.

The filament box can contain spools with diameters up to 210 mm and widths up to 80 mm, covering almost all 1 kg and less spools.

The model includes the desiccant container. I can recommend using the dryable silica gel with indicator granules. Please pay attention to keeping your desiccant effective. It needs refreshing from time to time to keep absorbing moisture.

If you have no refillable desiccant, the silica gel bags from the filament package should temporarily replace it. Put a filled desiccant container or a silica gel bag inside a spool before storing it in the container.

The gasket helps lock the container tightly and minimizes airflow when the container is closed. It requires printing using a flexible filament (usually TPU). Place the gasket inside the gap in the bottom box part. Fix the gasket corners first and then push the whole perimeter.

There is an option to print the box without a gasket. Storing filaments like PLA that do not absorb moisture too fast should be fine without a gasket and desiccant container. A fully solid container still blocks air but is not so effective. As a result, there is almost no point in using desiccant because it will absorb its limit fast.

Boxes are designed to be stacked, making filament storage compact and adaptable to your workplace. Containers can be placed vertically and horizontally and have handles for easy storage management.

The box has filament holders. The outer holders work as showcases, so you don't need to open the box to check what type of plastic is inside. Cut approximately 60 mm of filament and push it in two holders. There are holders on both sides of the box. The inner holders fix a filament end to prevent filament unwinding and deformation.

Fix locks on each side of the top part. There are two fixators for them on each side of the top part. After that, push locks into the bottom part on both sides simultaneously to close the container. Guides on the gasket and locks should help to fix the top part in the correct position. Pull locks handles in opposite directions to open the box.

To print the version without the gasket, pick relative locks. They are a bit smaller in size. You can also print the bottom part without the gasket gap. It is the same technically but is easier to print. Still, printing the version with gaps is better if you plan to add gaskets later.

To print one container, you will need about 400 g of firmament. No print supports are needed. STLs are already in the recommended to print orientation. Some parts require specific settings listed below:

• Top and “Bottom No Gasket” parts. Add an inner brim. 2 walls, 10-15% infill.
   
• Bottom part. Add inner and outer brims. 2 walls, 10-15% infill. Make sure to remove the brim inside the gasket gap after printing.
   
• Locks. Add a brim. 100% infill. PLA should be fine, but printing in PETG is recommended for better durability.
   
• Gasket. Print in TPU/TPE or other flexible materials, 100% infill.
   
• Container and Lid. No specific requirements.

Updates log:

• 7 Aug., 24: Updated the top part. The new stl has better print quality on overhangs. Also, I fixed uneven top layer defects when printing with a layer height of more than 0.2 mm.