【EIBOS Official】3D Printer Filament Dryer Easdry, 3D Printer Filament Dryer Box with Fan, Adjustable Temperature, Humidity Control & Spool Holder, Compatible with 1.75mm 2.85mm 3.00mm Nylon, PLA, ABS

If you are looking for a filament dryer that actually works, look no further. This one is by far the best I have found. I have tried several other designs and none of them even get close. First off, the temperature control is just an analog potentiometer. This means you can adjust it wherever you want to set it and it will stay there. It is also nicely labeled by filament type and it gets got enough to actually dry stuff (though a smidge hotter would be better for nylon). Additionally, the heater module is AC powered, so it heats up quickly and there is no massive wall transformer block to mess with. There is also no built in timer function: it runs until you shut it off. This is a good thing as timers cause headaches for drybox usage during printing, plus you really dont want it shutting off until you are ready to remove it, because you dont want to leave filament sitting where it can re-absorb moisture as it cools. Probably the biggest and best feature of this dryer, and the reason it actually works so well, is that it is actually vented. Apparently, the people who designed most of the other filament dryers out there do not realize that you need to give the released moisture someplace to go, otherwise it just builds up in the dryer until the air is humid and saturated and then just sits there as it slowly leaks out. This means that filament will not dry out nearly as fast, nor nearly as thoroughly. Having it vented solves this problem. For comparison, look at food dehydrators which operate on the same principle. They are all vented. There is also a pocket in the front of the box where you can place desiccant packs. This does basically nothing to help speed up the drying process, as desiccant packs actually release moisture when heated, rather than absorbing it. However, this is a great place to put your desiccant packs to dry them out and recharge them before you seal them up in a bag with your freshly dried filament. The only real flaw with this design is for use as a drybox during printing. While it can be left on low and has holes for PTFE tubing (and includes some), the central hub that holds the filament really doesnt allow it to turn as easily as it should, especially with cardboard filament reels. With plastic reals it works fairly well and I havent had any real issues with binding before, but with cardboard it gets just a bit too much friction. They really need to make a few changes to the design to put a few roller bearings around the top part of the hub. If they did that then this would be almost perfect. Other minor issues are that the filament hole placement could be a bit better (which is easily solved with a drill) and that the red power LED is so tiny as to basically be a joke (which is really a pretty trivial issue). It would also be nice if they had used a hygrometer module with a temperature reading as well. For reference, the hygrometer used is a standard 48mm x 29mm type, so changing it out for one with a thermometer is quite easy to do. So as a filament dryer, I havent found one better, the price is good, and this is totally worthy of 5 stars. As a drybox, it works pretty well with plastic reels, but as more and more filament is coming on cardboard, it may not work quite as well in some cases. Get one. Your filament will thank you. Recommended!

Was easy to load a roll of pla+ filament in with the cardboard rolls. Helped solve the problem of the roll coming off the spool of my flsun qq-s. Plugged up right out of the box. May have to invest in another one for my flsun delta next!

This is a waste of money and time. It arrived scratched. They toss the power plug inside the unit, and it bangs around during shipping, causing damage. The humidity readout isnt even close. It reads over 40%, in the desert, during a dry spell. There are multiple holes to run filament through, but they are all in dumb locations - the filament has to go around corners before it goes throught the holes. This causes friction, which causes printing problems. The sides of the unit get warm, so if you try to use it while printing, your filament will bend and stretch where it comes out. This will cause printing problems. It doesnt work as storage, because its nowhere close to airtight. So, what does this thing do? It does nothing. It is useless.

The quality of the product is poor. The product worked properly the first time I used it, and after a few days I used it again and he was no longer running. I suspect it is an inferior product.

Got mine May 19, takes about 2 hours to fully dry a spool. It has nearly been running 24/7 since I got it, not batted an eye yet. Great machine, highly recommend.

I have 7 different driers now. And all of them do the job. I really like the ease if use with this one. Great addition to my print farm. Thanks for another great product.

Its alright. I like a lot about it, including the double-insulated door with the pull-cord release, and the simple one-knob adjustment. But my spools drag the outer perimeter along the inner housing, which causes a lot of resistance while feeding. Maybe I can print some adaptors for difference spool inside diameters to solve this. Off to thingaverse...

Its a nice filament dryer box. I threw in my half used up roll of PETG thats been sitting out for about 2 months and cranked the knob to the indicated level. The fan is somewhat noisy but its not nearly as loud as any 3D printer with a fan or two. The filament prints like it was new, or just about. The humidity inside the box slowly drops as the heat is applied but as soon as the drying function is disabled the humidity goes back up. Not exactly the best place to store filament once its dry, but better than out in the open. Its a better use case for active environments unlike mine where a filament roll sat for two months.

First one I received was defective as it did not heat up but return was easy and replacement is working fine. Haven’t tried printing from it yet as it have Bambu AMS that I run most Filament from. Will try next time I need to print you. This dryer seems to be the best value of all that I looked at.

Bought this unit because it does not have a timer or complicated control interface. Works great and dries my filament for as long as I need to, without needing to restart the unit. Doesnt feel poorly built like some other units on the market, has the best heater and fan design Ive seen, and still has room for desiccant packets if desired.