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If you’re really on a budget, or simply have no real use for the added features of commercial filament dryers, then your best option is standard vacuum seal bags. If you’ve bought your own filament recently, it more than likely came vacuum sealed. One user who had many failed prints with TPU went out to research exactly why this was happening. After some time, he found out that TPU is actually very hygroscopic, meaning it absorbs plenty of moisture in the nearby environment. In short, it does make your prints much better than they were before, but there are a few things that you should know about this dry box. A desiccant screams filament drying on a budget. It’s obviously the cheapest entry on the list, and works for maintaining the moisture levels of your filament without absorbing more afterwards.
After putting the spool of TPU in the dryer box, it definitely did its job in allowing him to successfully 3D print some awesome models consistently. Since purchasing this product, he hasn’t had any further issues with filament moisture. Filament dryers are like storage boxes for your filament with temperature and atmosphere controls to create the best environment to increase the longevity of your filaments. printing is a process that creates three-dimensional objects by depositing successive layers of material on top of each other. It is also known as additive manufacturing. The most common materials used in 3D printing are thermoplastic filaments, such as PLA and ABS. Moisture can accumulate in the filament, causing problems during printing, such as warping and poor adhesion. A filament dryer is a device that uses heat and a controlled environment to remove moisture from the filament, ensuring that it is dry and ready for use in 3D printing. This can improve the quality of the final printed object and reduce the likelihood of printing failures.
Does PLA Need a Dry Box?
Additionally, this figure not only includes filament spools of the regular 1.75 diameter, but you can also fit in 3 mm filaments as well. This just makes Chefman the best filament dryer in terms of storability.
Here is a brief comparison of the effects of water molecules on some commonly used 3D printing filaments:While others have praised how it’s very effective for drying Nylon and PETG, and some also spoke of the great customer service, many complained about the absence of a humidity sensor. This means you can leave your filaments in the PrintDry PRO overnight and then immediately and directly use your perfectly dried filaments whenever you like. Nylon: Nylon is a synthetic thermoplastic material that is known for its strength and durability. It is highly hygroscopic and can absorb moisture from the surrounding environment. The presence of moisture in the filament can cause issues such as warping, deformation, and reduced mechanical properties. Drying the filament before printing can improve the mechanical properties of the printed object. Lower costs: You won’t have to buy more filaments because of damage caused by moisture, and you will save on costs in the process. Also, you won’t have to experiment with a lot of temperatures to heat the filament to reach the appropriate temperature for printing.
It’s worth noting that while vacuum-sealed bags are the best way to keep away moisture and dust, they won’t dry out the filaments if they’ve already been exposed, nor will they control the temperature at which the filaments are stored. It includes 9 adjustable trays that can be easily removed from the inside. This creates a lot of space inside the dehydrator, allowing one to store multiple spools of filament inside. Their melting point is around 135°C so be sure not to heat them up to that point, or else their Tyvek wrapping will soften and render the whole operation useless. Continue by sealing the desiccant dryer inside the enclosed box right alongside your filament. This will help keep the moisture at bay and keep your material dry. And not all materials are the same - for example BL PAHT-CF seems less suspectible to moisture than Polymaker CoPA. I also have several brands of PETG, some don’t care about moisture at all, others (Devil Design, Extrudr) hate moisture and will foam if left out of the drybox just overnight. PLA is mostly resistant, except when it has some sort of fill, like fibers or CF (though again - BL PLA-CF seems to be pretty resistant). Verbatim PETG claims “hygroscopic”, which is absolutely not true but drybox with some dessicant bags works fine.Most 3D printing filaments are hygroscopic, meaning that they absorb airborne moisture over time. If this happens, they will become unusable or even unstable. It’s not enough to think that your workspace is dry, as a lot of that moisture is undetectable to us. Eliminating moisture: A filament dryer will remove moisture from the filament, preventing issues like zits and voids resulting from the moisture.
Other features that come in handy are automatic timers and presets for different filament drying. One other thing I think the Sunlu comes up short in is the angle of the print opening for drying while printing. The port is just in a weird position. Its just not good for brittle filaments because the awkward angle. This is pretty easy to eyeball if you are looking for it. As referenced below, the red shows the approximate odd angle for full rolls (which isn’t too bad for low rolls). I got around this problem by using a piece of PTFE tube in the port (which appears to be exactly the right size for that, so they likely intended this, but didn’t tell the buyers). This tube allows the filament to bend at a more friendly radius. It also includes a single power button from where you can turn it on and off conveniently, unlike what was demanded in the SUNLU Filament Dryer.Rather than use an oven for this Nylon which can be troublesome and not temperature-accurate, he put the spool of Nylon in the filament dryer for 12 hours at 70°C (the maximum temperature) using the useful timer feature, and it completely dried the filament like it was a new spool. He previously tried other filament dryer boxes, but didn’t get results as good as with this one. An old 2-year spool of Nylon was giving him issues because it wasn’t sealed properly in a bag. You also can calibrate the temperature settings with ease. It has a set of two buttons, and those two can handle all the necessary functionalities that you desire.
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