eSUN eBOX 3D Printing Filament Box Second Generation, dehydrate Filament, Keep Filament Dry and Measure Filament Weight

When I was shopping for a filament dryer I saw this had only one review and it was negative. The guy said he set the temperature for a certain amount, and then checked the filament inside, and it was not the temperature that the screen showed and so he returned it.I don't usually pay attention to only one negative comment and so I decided to give it a try, because it's cheaper then the only other one which is just a repurposed food dryer and does not have the ability to weigh the spool like this one does.Reading the manual, I saw that they said at least twice that the temp listed on the screen was the temp of the heating plate, and not the filament or any other part of the device. I guess the other guy didn't bother to read the manual.I don't really care if the temperature is accurate, I care if it dries my filament. I had some PLA that was too waterlogged to print a first layer. I put it in and set it to the manual recommended 50 degrees and 5 hours. Afterwards I tested it and there was a vast improvement in print quality. That's what I needed to be happy.The device has a small nook to place a desiccant package in, and a tiny fan moves the air through that nook and around the inside of the device. There is a heating plate under the bottom that warms the air. The spool sits on two rollers and there is a little plastic thing with a tube that allows you to feed it outside the device and use the spool while it is still inside.After experimentation, I found that really waterlogged PLA dries better at 70 degrees and 7 hours, before it returns to a like new print quality. The 50 degree setting at 5 hours, is about as effective as my oven at the lowest setting for 5 hours. This device of course uses much less power then a oven, tracks weight and can feed to your printer.It's not perfect, but I like it and will use it to dry my spools and keep them dry while printing.

+ drys out filament well+ easy to use+ looks nicer than the modified fruit dehydrator ones- stock fan is pretty loud.other:The rollers can fit up to 72mm wide spools. Up to about 80mm wide (or even wider if the spool isnt very tall) will fit in the box for drying, but wont spin for printing directly from the box.It's worth replacing the 40x10mm fan with a noctua. The ebox has 4 screws on the bottom underneath the rubber feet. I used this one https://www.amazon.com/Noctua-Cooling-Blades-Bearing-NF-A4x10/dp/B009NQLT0M/ref=sr_1_3?keywords=40mm+fan&qid=1578261234&s=electronics&sr=1-3

So unlike other reviews I gathered actual data using a wireless temp, humidity and pressure logger that records data points hourly over wifi. Setting a spool in at max temp for 9 hours yielded in box temps between 100 and 103f after the first hour, and with a used dissilacate pack it brings the in box humidity down to 10-15% within 2 hours and holds it there until the timer runs out. My room humidity is between 30 and 36% and temp is about 69-72f measured with a similar device. I found that trying to feed my tronxy x5s which is a Bowden tube on top unit created jams and under extrusion so I'm not super confident in the tube feeder they provide. I think hotter in box temps and a fresher dissilacate pack would help get it even dryer inside. My petg did print better but for the 80 bucks this thing cost I ha e to wonder if I'd be better off with a toaster oven with digital controls. It's under powered overall imo for what it is supposed to do and the price. I'd rather have 50+ watts and not bother with the weighing functionality.

After repeatedly printing with filament that, despite drying for extended periods in this, was still wet, I finally put my own temperature probe in. Imagine my surprise when I discovered that the temperature it reaches is about 30 degrees celsius lower than the temperature you set it to!It's still usable for PETG, since I can turn it to 80, getting ~50 degrees, which is warm enough to dry it, but it's worthless for nylon. Probably just something like a bad thermocouple, which is repairable, but still, kinda ridiculous that this is evidently a common problem on this obnoxiously-expensive item.If I'm paying $80 for $10 worth of electronic components, I expect that you actually perform QA.

This seems to be a waste of money in my opinion. I purchased it, it worked for about 6 months and died. Now if you press the power on button, the display turns on momentarily then the power shuts off again. 2) It is a little on the small side with a very cheap fan in it. There really isn't much room inside to put a package of Desiccant.That being said, when it worked it seemed to work well. It kept the filiment dry and the built in scale is a nice option. However, at the current price I don't believe it is worth it; if you only get 6 months of life out of it.

Works as it should. I’ve been working with some nylon, which needs to be dried before use. I placed some color indicating silica which was (pink/wet) in with the nylon filament. After about 4 hour at 80c the silica was (blue/dry) and my print came out beautiful. After a few uses, the unit started acting erratic. I tried a different/ new Power supply , and everything seems ok. So besides the cheap, plugin power supply, the unit itself seems to work well.

I love this thing it dried my filament out and made it print like a dream. Works as advertised, the only thing I do not like about the eSUN eBox is it is noisy, The 40mm 12v DC fan is LOUD! I will change it out with a Noctua fan problem solved. Would be nice if they changed the fan in the future to a quieter one. I plan to purchase another soon and it would be nice not to have to change the fan right out of the box ( I travel a lot and stay in Hotels so my printer is in the same room as me, for people that can stay at home just put in the next room but it is still noisy ).... HINT... HINT... eSUN change the fan.

I am trying to dry PLA filament at 45c for 5 hour. 45c is about 113f. When I took it out, the spool was about room temperature. Cranking it up to 60f, I’m seeing 29c on an instant read thermometer.I’m disappointed,

The media could not be loaded.  Whilst not yet suffering from brittle filament, no doubt due to the environment being low humidity even in summer, I'm aware that it's going to creep up on me sometime. Some preventative measures seemed appropriate.This filament dryer ticked a lot of boxes: temperature controlled with specific settings for the various materials, fan assist to make sure the dessicant is used fully and the temperature is constant, filament weight display, etc. And a neat two-roller spool support for easier filament feed. Bang for buck seems much higher than the alternatives, despite being a bit more expensive.I just happened to have a reel partly used and decided to respool it onto eSUN spools so it would fit in the dryer - the dryer is a bit miserly on spool dimensions, which seemed to be the only negative point. A couple of hours drying before use should deal with any residual moisture.Unfortunately, a couple of hours in this dryer completely trashed the filament. The video shows the result - the filament is so brittle it falls apart into 4" lengths just unwinding it. The video also shows the remains on the old spool, and you can see that is still very very flexible.So, what went wrong? The thermal image shows all: the heater temperature is over 80C. The filament at the bottom of the reel is thus baked and rises about the glass transition temperature where the filament goes soft. That wouldn't be so bad (although not good either), but with the top of the reel at the programmed 36C it retains enough springiness to pull apart the now very rubbery filament at the bottom.The vendor says that the thermal image shows the heater, which is not the air temperature. That's true, but think about sitting in front of an electric fire, or under a grill - if you can see the heat source (which the camera obviously can) you are being heated from the radiation. Clearly, the filament at the bottom was getting too hot.The proper fix for this would be to just have a plate or baffle at the bottom so there is no line of sight to the heat source, and all heating would then be by convection. I can't imagine why no-one worked that out before selling the thing.Amazon, of course, refunded my purchase promptly. But the vendor declined to compensate me for the expensive reel of filament their kit trashed, so I am still down half the cost of the dryer. And pretty annoyed.

If you you want to 3D print with more exotic filaments you need to make sure they have been properly dried before use or you will have problems.There are a few options ranging from a kitchen oven set to a low temperature ( if it’s not a good oven you might ruin the filament) or you could modify a food dehydrator, but you can’t dehydrate food with it after, or you can buy a proper tool for the job.This filament drier is ok for hobby or domestic use and it will take a 1kg roll maximum, it’s function is very basic but it does what it needs to do. To make it a bit better I have put a temperature/humidity probe into it to monitor it while running but it works fine without. I have used it for old PETG and for new rolls of Nylon and TPU and they have printed perfectly.

I have to say that I'm really impressed with the effectiveness of this dryer, I ran it for two cycles and the humidity inside dropped to 34% when the ambient is around 66%.The user interface is a little confusing to begin with as I expected to just set a temperature on the display but instead there are 4 pre-programmed settings with fixed temps, I used the no. 1 setting for PLA but then upped it to no. 2 to get it a bit warmer.The outlet for the filament can point up or down depending on the location of the dryer. There is a space to put some dessicant absorber behind the fan but this isn't supplied so use the one that came with the filament, I bought some colour changing stuff that can be dried out in the microwave when saturated.A couple of negative points are that the fan is quite noisy and sounds like it's catching on something when first powered up but it gets quieter eventually, there is a relay that switches the heating element on and off which is quite loud and annoying I wish they'd used a semiconductor switch.A nice to have would be a display that showed temp and humidity inside but overall it's still a great device.############### Update 1st Nov 21 ######################Just tried to fit a 1kg reel of filamentive Tough PLA (with cardboard reel) and it will not quite fit, it will not turn without catching on the sides :-( so be aware.

I have always until now used a food dryer to keep my filament dry and in the best condition. I saw this unit and was bought a unit for Christmas. The unit weighs the filament and dry's it. The unit is very well made and certainly looks the part. My only criticism is the unit does not seal that well and with the heater switched off the moisture creeps back in. During drying, you need the moisture to evaporate but once dried the unit needs to be able to become hermetically sealed. Apart from this the unit works very well and I'm very pleased with the unit.

Warning, this is not for people who are serious about 3d printing. The listing is very vague on what the temperature it reaches, one says 80c and in the text is says 95c. With that said at 80c which is its max temperature it only reaches 50c which is not hot enough for Nylons or PC. If you are doing materials that run at lower temps I'm sure it would be great but not for anyone who is serious about what they do.Nice idea and the little tube set up to feed the material out would have been great, but it doesn't do what it says it would do. This is being returned.