The thermoplastic filaments used for 3D printing are more or less hygroscopic, meaning they absorb moisture from the air. High levels of moisture in the filament can ruin a print by affecting extrusion quality, cooling behavior, and layer adhesion.
Furthermore, UV light can cause discoloration and brittleness.
In short, we want to store filaments dark and dry. But what is the best method to get this done?
I just got my first 3D printer, so I do not yet know how I’ll end up using the printer; how often will I print and how often will I change filament?
Below are the different solutions I have found, so far. I’m linking them to Amazon for my convenience (not affiliated).
Multi-Reel Storage
I can get a dry-storage polycarbonate box equipped with desiccants that holds up to 4 reels.
The material of the box stops more than 90% of the UV rays, and the rechargeable desiccants will reduce the moisture inside (to as low as 10% according to some users).
The drawback is if I end up open the box frequently, I will also have to recharge the desiccants more often. To solve that issue, I could store the reels individually.
Individual Storage
I have found some nice reusable vacuum storage bags.
If I get these, I will add a hygrometer and desiccants to the bag for peace of mind, before sucking the air out.
There are also more expensive dryer boxes for individual reels. These are nice, as I can use the filament while still in the box.
Power Using Options
Finally, you can get boxes that store one or more reels, with active heating to dry your filaments. Personally however, I’m don’t want a solution that consumes power.
This leaves me with individual bags, stored in a drawer, or a multi-reel box that filters the UV light.
Either way I need a hygrometer and desiccants. I’ll update this post when I get fully set-up.