SUNLU Upgraded 3D Printer Filament Dryer Box with Fan - Filament Dehydrator Storage for 1.75mm/2.85mm/3.00mm PLA, ABS, PETG - Keep Filament Dry During 3D Printing (S1 Plus, Blue Grey) - Perfect for Home 3D Printing & Professional Workshops

--Edit--So, pictures are showing two of the "mini" 200g rolls of filament I got to try out. The red one I tried all alone and it jumped and swung all over the place and got snagged several times over the one print I managed to get to finish. For the blue I tried having two in there, since they're more snug. But while they didn't free-swing around, my extruder still made the container jump around and ground at the filament. I've had two full-sized rolls in this thing and neither did this. (all of the aforementioned prints were using the exact same settings).Reaaally grumpy about this. Also attached picture of the user's "manual/guide." SO Helpful. Silly the nice, /stuuuuurdy/, paper used was worth the cost, but apparently not having words in 2+ languages.Dropped to 3* since confirming the poor feeding design of this thing was the cause of these rolls stripping apart like this. Having to make special accommodations is fine (tape, weights, less than ideal restructuring of my printing area/cabinet). Having this thing's out-of-the-box design regularly and consistently destroying my material and prints, not okay.--Original--Seems to have done the trick insofar as keeping the filament dry and keeping my longer prints from failing that had started to be a major problem where I live.I have to say though, I'm shocked at how thin and flimsy the transparent part is. It's barely sturdier than plastic easter egg shells. Also should note that either I have the rolls in upside down from what's intended or the holes to feed the filaments through are really abrasive and like to grab onto the line sometimes.The demo video shows about the only way one can orientate this device and have a smooth feed too: temp display facing the printer perpendicular to it. I don't have room for that. I tried it sitting long-side against the printer frame, more or less, and the printer could barely pull the filament out of the holes. I have it set up so it's basically the same place, but under the printer and it's not as bad, but still gets tugged around a lot.It's a mix between the holes being grabby and the product itself is SUPER LIGHT. As in, my filament feeder can and has lifted the thing off the ground entirely. The whole thing.So, if you don't have the room for the perfect formation, make sure it's as glued to the ground and taped shut as you can get it. Yep, TAPE. Thing has zero built in/built on latching. No tabs, nothing.Now for the display... it's on the same side as the feeder holes... which you want pointed AT your printer's filament intake. For me, this means I have to stare at the backside of the dryer and can only imagine what the setting are or what the temp displaying might be, etc. The display needs to be on the back or the side, and the power adapter needs to be on the front, or it needs a much nicer, adjustable filament output hole and a couple steel bricks built into the base. All that said, I honestly can't rate it's accuracy or easy of use, 'cause I can't see it and use the dryer at the same time. I just blindly reach around and tap a button and hope it'll wake up and keep things nice and dry >_> Yeah, I still really have no idea what the buttons even do or how to adjust anything. The included guide has literally a picture of fingers on them with clock and temp icons, but literally zero words to explain what those buttons effectively do. There isn't a temp up/temp down button or pair of buttons. Just one solid button for temp. Same with time, not an up/down switch, just a solid button. I'd have to guess that both eventually loop around back to the machine's minimum setting.Gripe gripe, whine whine. Yep. Got what I paid for, ultimately. Does what it needs to, and if I needed to rebuild my printer cabinet to accommodate it and spend some duct tape to keep it closed AND print some form of improved filament tubing to make it work for me, still worth the price. I do have concerns, given it's flimsy quality, that one day the element inside might die if I sneeze to close to it or something, but who knows.Addendum: After reviewing the "put the filament in the machine" photo, yep, I technically have it in upside down I guess? Literally have to guess. Zero words. Just the roll and an arrow. Ironically, if I had it in the correct way, the "won't stay closed" problem would be WAY worse.TLDR; Worth the price by far, assuming you don't mind making adjustments to your space for it and don't mind printing or drilling better filament holes and taping the lid shut.This dryer box saved my roll of PLA filament! I had a brand new 1kg roll of black PLA filament that was exposed to excessive humidity in the air. The filament wouldn't print well and constantly clogged (tried for over 4 hours).I bought this dryer box in hope to save the roll. After using the dryer box for 3 hours with the roll, I tried printing and the black PLA printed perfectly and with no clogging.Despite always putting the filament rolls back in vacuum-packed dry bags (w/ desiccant) following each use, after a week of intermittent use of my 1kg roll of gold PLA silk, the filament started clogging and misbehaving. I ran it in this dryer box for an hour and kept it running while printing and it printed smoother than when the roll was new!Now, I put the filament roll directly in the dryer box and run it while printing. The dryer box does well feeding both a 0.5kg and 1kg roll of PLA filament.A feature I'd love to see added would be a way to close the open hole (there for venting moisture while running) in the lid of the dryer box so that the filament roll could be stored in the dryer box when off.Overall, I consider this a must have in your 3D printing toolbox.Got this to dry out some older filament and to be ready for printing some nylon. It works, no complaints, old PLA that was brittle and tended to break now prints pretty well. Not every old spool prints as well as brand new, but some dried spools do really print like new. I'm happy with the results.The only thing, is there is no enter button on the front panel. You turn it on, hit the left button, then use the right and left button to set your drying temperature. Then... wait for a minute or so and you can then hit the right button and use the buttons to set the drying time. If you press the right button too soon, it's still in temp set mode and you wander away from value you just got done setting. Wait too long and hit the button, it comes up in temp set mode again, you missed the time window to set the time. Once you get past that oddity and both time and temp are set, you just walk away. No beeps, no confirmations the setting took, no enter button to "set" the value. Sort of weird feeling the need to look in an hour to see it's actually working and warm to the touch. OK if I'm still in the shop, but I'm inclined to dry a roll overnight or while I'm doing things away from the shop building with the 3D printers.I specifically got this product because I was having problems with some reels I had which had been exposed to open air during rainy seasons. When I tried to print with those reels, the prints were really bad, with spotty layers and noticeable popping and hissing. After running the reels through this box with heat, those problems have since disappeared, and the quality has greatly improved. I will run new spools through this box before use.I bought this after a roll of TPU began sputtering and popping. Print quality changed from good to horrible. After drying with this device, the TPU printed like new. It is easy to setup and use and does what it is supposed to do. An unadvertised feature is that filament can be used while it is drying. Just feed the filament through a hole in the shell and print.I don't know how how many times I would go to print with some older filament and end up with a rough looking mess. I really didn't know how much humidity would mess up pla but sure enough I popped it in this device and it dried it right up. After putting the dried filament on the printer it worked like a dream. There is even a hole in the dryer so you can print right out of it. Just make sure that it has an unobstructed path to the feeder. The print quality was 100% better after using this product on my old filament.Works great. Helped keep my petg prints consistent. I don't care for the little plastic card that comes with it to keep the filament from snagging only because i dont know how long it will hold up but it does work. Thinking about mounting some guide tube to take its place.Bought this a while ago, and been using it ALOT - figured I should write a little review as its so handy.Arrives well packaged, with all parts needed. A quick flick through the instructions reveals no surprises. Insert filament roll (from 1.75 and up!) and set temp.I had a roll of filament that just would NOT print right, kept leaving 'blobs' everywhere, and nothing in other places!I deciided to chuck the roll in the dryer - left it to bake for 24hrs (way more than needed, but forgot it!). after drying, I tried printing the same model again, not changed any setting on slicer before hand. The print was a totally different from the original, wasnt perfect (cheap filament!) but didnt have the blobing and missing as before.Your filament roll sits on a roller bearing front and rear. so the roll spins with no problems or drag. Theres a couple of holes in the lid of the dryer, you can route the filament out through one of these, and feed it direct into your printer - perfect if your printer is in a garage or the like!The 2 holes really dont let much heat escape, if your only using it as a dryer - I'd recommend leaving the filament in the dryer and printing 'as is' - route the filament out of the dryer, over the spool holder on the printer gantry, and feed into the hot end.A worthwhile purchase, and helps no end in keeping filament dry - I'd recommend to anyone, and buy again should I get another 3d PrinterI must say I am very pleased with this product. It came well packaged, runs on 24V adapter which was supplied.You can set the temperature from 35-55°C, and set the baking timer from 1h to 24H.It achieves the 55°C in about 15min which is quite fast, to be honest. Nice big backlight LCD gets the temperature reading a breeze. Controlling the dryer is easy. Just set the temperature with the buttons and hold 3 sec to set the time.I had one spool of PLA which had been absorbed moisture and popping whilst printing, gave it 6h of drying on 55°C and no more popping, print came out great.The great thing about it that spool is laying on two rotating cylinders (they seem to be ball bearing) so you can print whilst drying, so you have dual-purpose, drying and spool holder at the same time.There is an additional hole on the top I suppose you could install the pneumatic PTFE connector but you can use the bottom hole for ease of use, which does not let too much hot air out anyway.There is no fan inside which is great because is dead silent. Front and back of the dryer get fairly hot to touch, I reckon where the heater elements are but nothing too severe, thinking about it, good that it has two heating elements because you will have even distribution of temperature inside the chamber. Overall this dryer looks very good, I am really happy with how it performs and will continue to use it to get my 3D prints as good as they can be.The issue of filament absorbing water and producing poor quality prints is massively frustrating so when this was released I had to have one! I initially tried this with a roll of black filament that I had basically written off for being too old and I knew I hadn't looked after it (who actually has time to seal them back up with the little silica bag!), and guess what it recovered it perfectly and I was even able to print my best benchy yet! (Pictured)What was maybe more surprising was that I then tried drying a brand new roll straight from the manufactures vac sealed bag and achieved print quality like never before! I'm now going to be running all new material on a 3hr drying cycle before printing.In conclusion this is a must have if you want to achieve top quality 3D prints!Advertises as Amazon choice,Came with a euro-plug to the UK have to use adaptor.! "box info has multiple power adapter options including UK plug.?"This is an Amazon problem more than Sunlu.Instructions booklet gives you a QI code to download pdf file,The pdf file is vary poor and unable to read due to being blurry poor copy.Luckily it's simple to set-up and use, I have had some good prints with some of my old filament after leaving the machine too do it's work drying out the reals for six hours at 50°C.Previously the filament would just snap vary easily.ISeems to be working ok.Even if you take care to repack filaments after using (its rare that a whole reel gets used up in one go), the filament will eventually start absorbing water. I have used this drier on a few reels and it restores the print quality to like new. Its provides an improvement even if the filament is obviously affected by moisture.