Most FDM 3D printing filaments absorb water. Moisture can hurt print quality. It can cause issues like stringing or surface defects in the final product.
Also, dust or dirt can stick to the filament if it has been in the air for a long time. Using it directly for printing might clog the nozzle.
Therefore, how to store filament correctly is the key to ensuring printing results. Below, we present different filament storage solutions based on material, quantity, and price. I'm confident that you'll find a solution that works for you.
1. Non-sealed filament storage rack
Image source: Reddit
Want to access filaments at any time, but don't want to be too troublesome? A non-sealed filament storage rack is a great choice! You can easily build one yourself using common household tools and materials. It's flexible, allowing you to store as much or as little filament as you need.
However, this method is best suited for those who frequently use PLA filament. Studies have shown that PLA has a low moisture absorption rate, especially in environments with relative humidity below 50%. This means you can store it in open air for a week or longer without significantly affecting print quality.
On the other hand, materials like TPU and nylon are more sensitive to moisture. They can absorb moisture more easily, leading to issues like softening and stickiness. For these materials, you should use a more sealed storage method.
Required Materials:
- Screws and expansion bolts
- Crossbar (optional: metal conduit)
- Wall-mounted brackets
- DIY tools (electric drill, drill bits, wrench, etc.)
Estimated Cost:$30 - $100, depending on the specific materials and tools you choose.
2.Camera drying cabinet
Image source: Reddit
Camera drying cabinets were originally designed to protect cameras and photographic equipment from moisture and dust. However, their features make them ideal for storing filaments as well.
The airtight design of these cabinets effectively blocks out dust and other contaminants. The built-in humidity control system, typically set between 30% and 50%, maintains optimal moisture levels. This helps prevent filament from absorbing moisture and ensures it remains in top condition.
Drying Cabinet Capacity and Storage Estimates:
- Small (20L-30L): Approximately 5-10 rolls of filament
- Medium (40L-50L): Approximately 10-20 rolls of filament
- Large (70L-100L): Approximately 20-50 rolls of filament
Estimated Cost: $80 - $700, depending on its size and brand.
3. 5 gallon sealed bucket
Image source: Reddit
Choosing a 5-gallon bucket with a tight-sealing lid as a filament container is a creative and effective method. A 5-gallon bucket can hold 8-10 rolls of 1kg filament. It will keep your filaments protected from moisture, dust, and contaminants
To prevent damage from impact, use soft materials such as foam or bubble wrap to cushion and separate the filaments.
Estimated Cost:$5-$15 (with airtight lid).
4. Gasket Boxes
Image source: Reddit
Gasket boxes are similar to 5-gallon buckets, but they offer a visual advantage. The transparent design allows you to easily see the filament inside. This makes it convenient to check both its condition and quantity, ensuring you're always aware of your filament supply. While 5-gallon buckets offer superior durability and sealing, gasket boxes provide a balance between convenience and protection.
If you want a simple DIY drying box, you can use a beam and several PTFE connectors. Just add them to your cereal storage boxes. This allows you to maintain the filament's dryness during the printing process.
Estimated Cost:$10-$40
5.cereal storage boxes
Image source: Reddit
Cereal storage boxes are great for storing filament. The storage space and tightness are just right for a roll of filament. Of course, you need to pick the right size. For example, 1kg of filament is about 8 to 8.7 inches in diameter and 3 to 4 inches in height.
In addition, you can also turn it into a filament drying box like Gasket Boxes.
Estimated Cost:$8-$50
6.Filament Vacuum Bag
Image source: EIBOS 3D Filament Vacuum Pump & Bag EURUS
For an even better storage solution, filament vacuum bags are an excellent option. To protect against dust and humidity, package each filament separately. Use a vacuum to remove air and add a desiccant for extra protection.
Estimated Cost:10 bags-$16.99
7.Filament dryer
Image source: EIBOS 3D Filament Dryer Polyphemus
The filament dryer box is a storage solution specifically for 3D printing filaments. These devices usually have humidity control and filament drying functions. However, these devices usually can only store 1 to 4 rolls of filament and have a small capacity. Because they primarily address the humidity problem of the filament.
Estimated Cost:$35-$100+
If a high-priced filament dryer feels too expensive and you don’t use it often, maybe DIY filament dry box would be a better choice like oven and food dehydrator. But you need to control the temperature very well, otherwise there is a risk of melting the filament.
More suggestions
When storing filament in a sealed space, you can add a desiccant to absorb moisture. This helps maintain an ideal humidity level. To further ensure proper storage, you can also use a humidity detector. It will allow you to monitor the environment and check the filament’s condition in real-time.
1 comment
The very best filament storage container have found, by far, is the clear 2.5 liter Lock & Lock HSM952 round food storage container – used for cakes, pies, etc. These are airtight, stackable and fit 1kg filament spools exactly, with room for desiccant in the spool hub. They are relatively cheap in UK and Europe but hard to find at a reasonable price in North America. Would be great if a North American supplier stocked them.