QA

Question: How To Store 3D Printing Filament

How do I store my filament after printing?

How Do You Store 3D Printer Filament? To keep your printer’s filament in a better and durable condition, you must avoid its contact with air so it doesn’t absorb moisture. It is better not to leave it overnight or out in humid air. You can also store them in a ziplock bag once the filament has cooled down.

How do you store your PLA?

To ensure your PLA and ABS filament remains dry, just return them to a sealed bag with dessiccant after use. The dessiccant will prevent/slow the material from absorbing moisture. Nylon and more sensitive materials should be stored in an actively dried container.

Does PLA need to be stored in a bag?

The cheapest way to store your PLA filament in a manner that prevents moisture pickup is to keep them in the standard zip-sealed bags. These are the same ones typically used in households to store food. Just make sure to get extra-large zip-sealed bags so they can fit your entire filament spool.

Does PLA need a dry box?

Though it is not totally necessary to store PLA filament in a dry box, leaving open spools of filament out to deal with ambient conditions on their own, will always be a bad idea. This is also the reason why a 3D printed PLA object itself is quite safe from water damage and PLA filament is not.

Does PLA filament go bad?

PLA. Typically, PLA Filament has a shelf life of about 2-3 years. This means you can buy it, store it in a cool, dry, and dark place in its original packaging (to prevent moisture), and still be able to print with it almost 3 years later. Keep in mind that after 2 years the print quality may start to degrade.

How long does it take for filament to absorb moisture?

Because some 3D printing filaments are hygroscopic, meaning that they absorb moisture from the air, prolonged exposure to even moderately humid room air causes moisture saturation. After 150 hours in standard conditions, PLA filament may swell up to 40 micrometers before reaching its saturation point.

Does 3D filament go bad?

Unlike food which has a specific expiration date, filament does not have a specific expiration date. However, filament can go bad based on storage conditions. The worse the conditions the quicker the material will go bad. If you notice the print quality suffering, the first thing to check is your filament.

Does PLA filament need to be sealed?

PLA should be stored with desiccant (green) in an airtight box when not in use. If your PLA starts to bubble and pop as it comes out the hot end, or becomes brittle and snaps, then your filament may have absorbed too much water. Take your stale PLA and put into an airtight container with plenty of silica desiccant.

What humidity should PLA be stored at?

There are conflicting opinions on the perfect humidity level for your filament but it should be safe anywhere between 10-15% humidity.

How do you know if your filament is wet?

Different filaments absorb moisture at different rates, but there are a few common signs that you’ve got a wet spool: Popping or cracking sounds when extruding. Severely reduced part strength and layer adhesion. Uneven extrusion lines. Uncharacteristically severe stringing, blobbing, or oozing.

What temperature does filament dry at?

A spool of filament can be dried in a PrintDry filament dryer before 3D printing for storage. The dryer temperature can be set in a range of 35-70°C or 95-160°F. Relative humidity inside the PrintDry filament dryer can go as low as 10% after 2-hour drying.

Why does my PLA filament keep breaking?

PLA is also known to degenerate rather rapidly, which explains why it eventually snaps off during printing. The degeneration process of PLA filaments could take months, but some conditions could further aggravate the material’s flexibility. A commonly circulated theory is the moisture adsorption by the filament.

Can I leave PLA out?

If you’re actively printing, PLA will usually be OK if left out. You could find a 2 gallon ziploc freezer back and toss it in there with a packet of desiccant for storage.

What happens if PLA gets wet?

PLA absorbs water and will weaken slightly when it does. The more moisture in PLA, the weaker it will become. A wet PLA print will have a rougher texture and more imperfections like blobs, bubbly texture, and stringing.

How long does a roll of filament last?

On average a standard roll of 1.75mm PLA filament will last approximately 123 hours of printing time. A standard roll of 3.00mm PLA filament will last approximately 141 hours of printing time. To come up with these averages I used a slicer to calculate the filament usage of several models.

Is humidity bad for 3D printing?

In the case of 3D printing, more specifically in the filaments, the concentration of excessive humidity can cause a long list of problems, all with the same end, a 3D printing failed. Remember to avoid having the filaments placed in the printer if you are not going to print.

Can you microwave filament to dry it?

Drying your filament in a microwave is similar to boiling it, which wouldn’t be the best idea. Some filaments such as TPU include dipoles in their formation which allow them to get heated quickly, so drying these types of filament in the microwave would be very damaging to the physical properties.

What filament does not absorb moisture?

HIPS: Originally created as a support material, is being used more and more as the main printing filament. Of all filament types, HIPS is the least affected by moisture and some claim it is not hygroscopic.