3D printer users face issues with filament drying
31 posts across 2 communities in the last 30 days; 97% from r/3Dprinting.
“Printer is an Ender 3 V3 SE stock Filament is PrintOnion PETG in matte black It has been in the dryer for 12 hours at 60c Never had this issue with Creality petg (grey, non matte) Temp is 250c, bed 70c When it finished printing the purge line it oozes a bit and is pulled out…”
“I'm trying to print with TPU for the first time ever and can't seem to get it to work. After a couple layers, it starts doing this. I have a filament dryer set to 55 Celsius and it has been in it for about 4 hours now? Please tell me what I'm doing wrong”
“Using a bambu labs x2d with creality PLA, it’s at 200 c temp. I’m using bambu studio. I’ve lowered the temps by 5 degrees, and the speed is at default. I’ve cleaned the nozzle as well. The PLA has also been drying and it’s sitting at 25% humidity. Any help would be very…”
Multiple 3D printing enthusiasts are experiencing problems related to filament drying, including filaments not reaching adequate temperatures in their dryers and resulting print defects. Users seek recommendations for more effective dryer models and troubleshooting tips.
SOURCES (60)
“I'm in Brisbane, Australia and have never managed to get below 10% on my AMS2 and AliExpress humidity fauge submitted by /u/innuendo-inyourendo [link] [comments]”
“What do you think? Will my filament be less wet with those inside spolls? submitted by /u/ThreeVelociraptors [link] [comments]”
“I’ve started to use Asa filament and built a tent for my printer that exhausts outside for printing temperature styrene fumes but what about drying temperatures around 75c should I put the filament dryer in a tent as well at those temperatures or is it low enough that it won’t release much fumes? submitted by /u/CapitalBranch9084 [link] [comments]”
“Not strictly regarding 3D printing, but rather preparations. I have noticed the quality of my prints have started to fall quite drastically. I use Bambu A1 + AMS Lite, did all the maintenance needed, but still the layer lines were not as I would expect them. So I caved in and bought a filament dryer. My spools live comfortably in boxes with dissicant, but of course, ones that are on the AMS are exposed to moisture in the air. First filament I tried drying was Sunlu Wood PLA. Set the S2 to PLA, 6”
“Got pa612-cf spool but it snaps like rebounds and slaps ur finger. Took out vacuum spool dry 10 hours at 80c in space pi x4 got my replacment spool and its snapping out of the bag. Is it different than pla petg etc where it snaps when dry? And if its supposed to be like this what do you do have straight tube so doesnt snap? submitted by /u/Aggressive_Bill7478 [link] [comments]”
“Hey everyone, I'm thinking about setting up my 3D printer in my laundry room, but I'm worried about the humidity. Here is the situation: The washing machine only runs every two weeks, on weekends. When it runs, I hang up two full lines of wet laundry in that room, and it stays there to dry for a full day. During that day, the room will get pretty humid (75-80% humidity). Otherwise the room stays dry. My questions are: Do you think it's safe to leave the printer in there permanently,”
“I have a space pi dryer and had the filament drying for 5 days at 70c but it’s very brittle still. Can somebody send a video of them bending a small piece of pa6-cf so i know what it looks like to have dry filament or did I get a faulty filament. Seems to break in the PTFE tube when doing homing. Thanks. submitted by /u/Remarkable_Bus8959 [link] [comments]”
“Hi everyone! I’m curious how people in Ireland deal with filament moisture, especially given how humid it can be here. I’m mainly interested in PLA and PETG. Do you use a filament dryer, airtight storage boxes with silica gel, or just leave your spools out? Have you actually experienced moisture-related printing issues, particularly with PETG? Or is humidity less of a problem than people make it out to be? Would love to hear what works for you in Ireland. Thanks! submitted by /u/Orga”
“In the middle of a print and started getting this fuzz. I presume the filament isn’t dry? (Insignia glitter blue, in AMS Pro 2 at 22% humidity) lower on that arm there is no fuzz, just later on this print. submitted by /u/By-Tor_Syrinx [link] [comments]”
“Second photo shows how drying filament is totally useless. submitted by /u/ThreeVelociraptors [link] [comments]”
“when i extrude some pla i see white smoke under the lightbar (p1s) should i be worried? i dried it for like 4 hours because it started stringing so it shouldnt be steam, filament doesnt crackle too submitted by /u/createminecrafter [link] [comments]”
“Printer is an Ender 3 V3 SE stock Filament is PrintOnion PETG in matte black It has been in the dryer for 12 hours at 60c Never had this issue with Creality petg (grey, non matte) Temp is 250c, bed 70c When it finished printing the purge line it oozes a bit and is pulled out which results in the first 2cm of the print not being printed at all, and if I leave it running anyway this is what happens. If I switch to the grey creality filament with the same settings then the issue disappears..”
“I'm trying to print with TPU for the first time ever and can't seem to get it to work. After a couple layers, it starts doing this. I have a filament dryer set to 55 Celsius and it has been in it for about 4 hours now? Please tell me what I'm doing wrong submitted by /u/AshirNazar [link] [comments]”
“Hey there, the maximum temperature a sunlu v3 spool can resist during drying is written in the filament label. Anyone knows how to identify the type of spool when the label is removed? Colour or anything else? Is it maybe written directly on the plastic itself? Thanks for help :) submitted by /u/chris-ham [link] [comments]”
“I have been wondering what’s the cheapest and easiest option to dry pa6-cf or any 3d filament that needs 80c+. because I been looking on some 3d dryers but 1 they are expensive 2 most of them won’t even go over 70c And to dry pa6-cf and some other filament those dryers won’t work. I’ve seen some people used cheap airfryers? Anyways what’s the cheapest way to dry pa6-cf (without using same oven you cook food in) I want to buy something that the only purpose of it is to dry filament Update: Anothe”
“Do you leave the filament thread sticking out like that while drying? How much % should the hygrometer have when i need to dry the filament again? I am new with this and i dont know how this works. submitted by /u/Salome400 [link] [comments]”
“Using a bambu labs x2d with creality PLA, it’s at 200 c temp. I’m using bambu studio. I’ve lowered the temps by 5 degrees, and the speed is at default. I’ve cleaned the nozzle as well. The PLA has also been drying and it’s sitting at 25% humidity. Any help would be very appreciated. I plan to lower the speed to see how that’ll fair. I’ve had this problem happen twice. submitted by /u/DiskWorth8651 [link] [comments]”
“Door was semi open in this case to ease filament pull so the print would not stop completely. I tried to use front exit for filament. I tried other dryer - sunlu s1. Same issue. How to arrange or solve this? submitted by /u/let-me-see-your-boob [link] [comments]”
“Hello, I can not add my filament to filament manager, because Sunlu PLA is not listed, only Sunlu PLA+ which is different, please add it to filament manager. Thank you. mfg Axel”
“No matter the filament, my target chamber temp stays at 0. Which means as soon as the print starts, all fans ramp to 100%. I just want to set it to like 50 so this doesn't happen. Thanks in advance. submitted by /u/ItsAsickOstrich [link] [comments]”
“I have bought the SUNLU AMS Heater for my Bambu AMS (v1), but I noticed that when I turn it on to dry the filament the ams wont recognize any filament in the slots anymore. As soon as loading the filament stops, the white led turns off and I can't select it in Bambu Studio, the slots are displayed as empty... Does anyone have the same issue? Is this normal? submitted by /u/Vortilion [link] [comments]”
“Elegoo Rosewood PLA. Left one is moist (about a week in 50-60% humidity), Right one is afrer about 4 hours of drying! I finally got the Sunlu FilaDryer S4 Pro and couldn't wait to see how it would affect this fillament. Love this fillament and I'm pleasantly surprised the results are already there. submitted by /u/TheWildPackage [link] [comments]”
“I have just had my CC2 delivered along with 6 spools of 1kg filament (PLA). Looking forward to getting it set up. Unfortunately I have to set this up in my garage because I dont want to have it inside for noise and fume/voc etc reasons. Im in the UK specifically scotland and therefore its very humid and wet! My garage is measuring around 65-70% humidity. How fast will my filament 'wet' in such conditions? Ive seen the DIY filament cereal boxes that auto feed from the box etc. Do I need t”
“Hey everyone! I'm new to 3D printing and mostly print with PLA on my Snapmaker U1. I live in a city where humidity is usually around 60%, and my filament spools are exposed to the air. What's the best way to store my PLA? Would IKEA SAMLA boxes with silica gel be a good option, or should I invest in a filament dryer? submitted by /u/hiimmdt [link] [comments]”
“Hey all, been printing in PLA on P2S. Used PETG for a better temp resilience to make dry boxes for AMS 2. Dried brand new sealed spool for 6 hours at 65 C. Here’s how it turned out with default presets for PETG in bambu Studio. Please let me know if there’s anything I’m missing or should look for. Any adjustments in presets needed? Is the lines normal with PETG? Thanks submitted by /u/starrock05 [link] [comments]”
“"I have a few kilos of filament that has only been stored with a little factory desiccant in a normal, non-airtight box, and I have a few rolls loaded in my AMS. When I tried to print with that filament, it snapped in the AMS hub and caused a lot of issues. My main question: can I use that filament by feeding it directly into the nozzle, or will that cause any issues? And if I want to use it in the AMS, is drying enough, or is the filament a waste?" submitted by /u/Chameleo”
“Like the title says i want to print some stuff with asa for the first time i jave vented my CC out the window and got a chamber heater for it. So on the printer side i feel i am ready. But the thought just now occurred to me will the asa be toxic while i heat it up to dry it in my filament dryer. I use a sunlu s4 submitted by /u/meta358 [link] [comments]”
“Just got my 3d printer and I already used up all my pla. So I want to switch to petg. And they say I need a dryer for it. submitted by /u/Working-Profit2734 [link] [comments]”
“How do you store your filament? Dry boxes, vacuum bags, DIY setups — or spools everywhere? 👀 Show us your filament storage setup for a chance to win! 🎯 How to Enter Join r/SUNLU Comment below and share how you store your filament. Photos are welcome! 🎁 Prizes 🥇 1st: FilaDC i10 ×1 🥈 2nd: SUNLU PETG 2.0 ×2 + Silk 2.0 ×2 🥉 3rd: SUNLU PETG 2.0 ×1 + Silk 2.0 ×1 📅 Sep 15–30, 2026 About FilaDC i10 💧 Physical Adsorption + Smart Cycling 📦 10-Spool Sealed Storage ⚡ Low Energy · Quiet Operation De”
“Tpu roll that has been lying opened in my room for a year. It has been in the dryer for 1hour 20 minutes. I read that you should dry tpu for 6/8 hours. It already shows 12% humidity only. I read that tpu should be dried to below 15% Should i wait for 6 hours and ignore what my SpacePi says, or should i look at humidity %? First time printing tpu also. submitted by /u/ThreeVelociraptors [link] [comments]”
“Hi all I'm quite new to the 3d printing world, and after 2 weeks of flawless victories, I have made my first mistake. While drying 4 rolls PLA in the bambu lab AMS 2 pro, one of the wire ends of the spool got loose. As the thing has turned for 8 hours the filament was not tight on the spool anymore causing warping on the wire. I took the worst bit off, rolled it out for 400 grams or so and rerolled the entire thing. The last 100-150 grams got some bends in it like the image. Can the P2S stil”
“Hi everyone! Hope your prints are all doing good, check the internal camera to be sure 👀 Anyway. I got a sunlu s4 dryer and want to use it with my snapmaker u1. My thought was to put the dryer above the printer on a shelf or inside a cabinet with bowden tubes coming out of it. My question is, will the bend from above or under the printer be too big for the filament that it could cause snag or snapping? Ive seen mods for the u1 that allows you to turn the filament feeders to the side so it wont”
“I was gifted a full roll of filament sealed in a home vacuumed bag with no indication of brand or type of plastic, the person told me “I think it’s pla” but when I put it through my extruder, @205c it didn’t load like pla and didn’t smell like pla I’ve only printed pla, PETG and TPU in the past 5 years so I wouldn’t know what other plastics smell like. Is there a way to identify a filament type ? It came in a very wide spool, larger hole, smaller diameter, but very wide… submitted by”
“Was spending weeks chasing random stringing and brittleness, turns out my rolls were just absorbing moisture in a ~65% RH room. Tried small sealed boxes first, then consolidated everything into one cabinet with desiccant — it now sits at ~25% RH. Kept all 40 spools organized, labeled, and the "mystery" prints basically stopped. What's your storage setup? Did you start small or jump straight to one big solution? submitted by /u/Aggressive-Rich919 [link] [comments]”
“Guess it’s time to figure out a solution for filament drying. submitted by /u/SkylarkLanding [link] [comments]”
“7 hours at 70°C, same spool, same GCode submitted by /u/Ben-he-is [link] [comments]”
“Insignia 95A TPU (dried to heck) vase mode. Changed nozzle temp from bambu studio's default print temp of 240° (!) for "generic tpu" to 220° halfway 🙃 looks cool at least (custom base for our weird toilet paper holder) submitted by /u/IAMAPally [link] [comments]”
“These usually print just fine - as you can see, the brown does just fine but when the yellow switches out, it gets completely butchered. Same temp as always - nothing has changed. I run them at 215 degrees and haven’t had any major changes to the machine. Printing on an Anykubic KOBRA S1. Any ideas? submitted by /u/VforVendettaboutit [link] [comments]”
“I just bought my 3D printer last July. I have about 20 PLA. i just stored it in a bin, no issues. Lately I've been noticing issues here and there. I bought a dryer and would like to do better in terms of storage. Is it good to run all pla through it at least once and store properly(air tight with desicant packets)? What should be my process? submitted by /u/Mountain-Bag-8993 [link] [comments]”
“those of you who are hobbyists with multi-filament printers (4 or more), are you realistically able to use your filament before the humidity gets to it? i'm ready to upgrade from my ancient flashforge creator pro (which has 2 extruders), and have my eye on a prusa with the indx 4 tool, but it seems like i'll still have to do lots of loading and unloading since i generally don't print enough to use 4 spools of filament before they go bad. is there a real use case for hobbyists?”
“I have been reading A LOT about the sunlu s2 and the creality space pi. Both seems to be the top result you would get and the most suggested filament dryers, however after reading and watching a bunch of review, both seems to have many problems. There was also a post here from a couple months ago that showed that there were 2 sources with WAYY different opinions on these dryers. This post I have seen videos of people saying that their creality space pi's humidity sensor being faulty and not”
“Traditional PEEK is usually difficult on the H2D, but we’ve find a new PEEK-type PAEK filament designed to print within the H2D’s available temperature range. submitted by /u/call3d [link] [comments]”
“I've tried drying my filament several times, different rolls of different filament, the polydryer doesnt seem to be able to dry it properly, the latest petg never went below 40% after drying for 12 hours. The previous abs never went below 30% Is there more to this I'm not getting or is my box not sealing properly? submitted by /u/Frelsaren [link] [comments]”
“Hey, I have the creality x4l dryer next to my prusa mk3s+, no space to put it above so it’s next to it.. tried using a tube replacement I had as a spare to guide it from the dryer to the filament guide on top and down into the hotend, but it wasnt pulling it by itself, it was applying excessive force to get the filament to come so I had to manually pull it out during the print. It’s the same ptfe tube I used inside my hotend as a spare part, can it be too tight to guide filament?? Or does the dr”
“Never thought it made that much difference drying my PLA, it does, from now on I'm drying all my pla submitted by /u/AppearanceGrand [link] [comments]”
“Just bought a filament dryer for PETG. Been drying for about 5 hours. Should I expect it to get to 0% humidity? Is there an acceptable amount of humidity? submitted by /u/Entrepreneur_Pale [link] [comments]”
“Struggling to find a dryer for this filament. I have an H2D. submitted by /u/the_real_kontorstol [link] [comments]”
“Hi, I wonder if you guys could shed some light on this. I recently started 3d printing, and now I got some dryboxes to store my filament. In the boxes with petg and tpu, the humidity dropped to 10% within a few hours. In the boxes with pla it dropped only to 25-30%. Two weeks past, the values of pets and tpu are still 10, pla went above 35 with completely saturated silica. All my pla has similar results, all 25+ Any ideas? submitted by /u/Ancient_Vegetable_32 [link] [comments]”
“Filament: Fiberlogy PA12 White Printer: BambuLab P1S + Panda Breath Chamber temp: ~55c Drying: 70c, 5h Profile (screenshots): Generic PA (Modified, but the default settings gave similar results) First layers looks overextruded so I've tested 0.95 flow ratio with no effects. Other layers wraps on corners. submitted by /u/Muted-Anywhere-1619 [link] [comments]”
“Is anyone using Sunlu AMS heater gen 1 submitted by /u/ARbuilds85 [link] [comments]”
“I want to dry my spools and I have a dehydrator that looks like on the picture. Is it okay to use it and how many hours and celcius should be enough? submitted by /u/arif_keser_21 [link] [comments]”
“This week I started having issues with newly built Voron Trident where ABS printed at 255° (temp tower tested and almost 2kg in) suddenly started to clog up (it was the extruder grinding the filament, when that happened I could just push it in and it would go on) At first I suspected the nozzle could.be the cause, so I switched it (Bondtech CHT to brass), but was getting flow rate below from what should be, so I also suspected the extruder gears being filled with dust due to the grinding; but to”
“Hello everyone, I bought my Ender 3 Pro years ago and for personal reasons didn't use it for a couple of years. I had one spool of vacuum sealed PLA left but it's now nearing it's end. I went on amazon to find more but most if not all the PLA I find is 1.8mm, mines were 1.75mm. Are they compatible anyway? Do I need to mod my printer? I couldn't find clear answers on the web, help a girl out please! submitted by /u/AnarkAlice [link] [comments]”
“Just came into my mind randomly. Could it work to pre melt/heat the layer below the current layer printed just enaugh to get stronger layer bonds? clearly this needs new calibration for each filament, a powerful laser and the laser somehow needs to place the its beam just before the nozzle without the print head blocking it... but maybe somehow?! :D love to hear your thoughts, concerns and ideas on how this could be achieved. submitted by /u/NuIIPointer [link] [comments]”
“How important is the use of desiccant beads? I just use the packets that come with the filament in the AMS, but it doesn’t keep moisture down at all. As soon as I turn the drying off it creeps back up. submitted by /u/Inthesummitcity [link] [comments]”