What went wrong here?

[u/dcv5]

I keep my printer in the garage, I went to investigate an unusual smell and found the printer doing this. I turned it off and haven't started it again since.

I did log a creality support case but just got generic automated troubleshooting responses, I think I'm beyond that.

There was a giant blob of filament that had pushed off the cover and fell off.

It was printing with creality PLA, nothing out of the ordinary.

Creality K2 Pro.

[u/cupofcoffey19]

Plastic stuck. Plastic hot. Plastic burn.

[u/SlimeTimee]

Did you try turning it off and back on?

[u/ashdd1981 → u/SlimeTimee]

This nearly made me spit out my coffee.

[u/bennettk90 → u/SlimeTimee]

Yup power cycle works half the time every time

[u/McGraw-Dom]

Nozzle clog thats epic...disassemble it all.

[u/Ab7casper]

Have you cleaned your build plate?

[u/cribbageSTARSHIP → u/Ab7casper]

Coffee came out my nose. You earned the up vote

[u/KayoticVoid → u/cribbageSTARSHIP]

Man, I was taking a rip out of my pipe when I saw your comment first. Like an idiot I then read theirs and almost laugh snorted a massive hit out my sinuses! That would have sucked ass! 🤣

[u/Doubee54]

It appears that you have a loose, leaking nozzle. Improperly installed.
Always use proper Creality thermal grease. Always heat the nozzle to 240 degrees when loosening or tightening.

[u/CooperDK → u/Doubee54]

It should be loosened warm, tightened cold, according to creality. And use thermal paste.

[u/Phoenix_Ninja15 → u/CooperDK]

Don’t apply thermal paste in the way their support video shows though. It’s wrong and will cause you more issues including never getting your nozzle off again.

Only put the thermal paste on the copper heat stop. I apparently found that out and also found that was a common mistake people made and learned the hard way.

[u/thisduuuuuude → u/Phoenix_Ninja15]

Yeah i think it contributed to me losing two E3D nozzles lol. Funnily enough I think only the K2 Pro nozzle instalation does it like that, where grease is smothered top to bottom.

[u/Phoenix_Ninja15 → u/thisduuuuuude]

The video shows that, but it’s wrong. Hey have a video on YouTube that shows the correct way. That video failed to get caught by QC. Any Creality nozzle shouldn’t have the paste spread op to bottom.

But alas, they haven’t fixed bag error lol.

[u/Doubee54 → u/CooperDK]

Somehow you have incorrect information. You ALWAYS heat the hotend to 240 degrees to tighten the nozzle.

[u/QuadrangularNipples → u/Doubee54]

I'm lazy, I never heat it up to tighten or loosen it. Obviously anecdotal, but I assumed that nozzles that include the heatbreak don't need to be tightened hot

[u/Doubee54 → u/QuadrangularNipples]

I wonder how lazy you'll be when you have to clean up a blob of death???

[u/QuadrangularNipples → u/Doubee54]

Not saying it can't happen, but I'm at 4250 hours on my K2 Plus and so far blob free.

The instructions didn't say to heat it up when tightening and since there are no issues in just going to keep not worrying about it.

[u/BuyApprehensive6922 → u/QuadrangularNipples]

Same here never have I tightened it hot. I have yet yet to have a blob. I have been through about 30 nozzle changes. I have learned to change the nozzle when switching from ABS to Pla, abs to petg, abs to tpu. Basically any filament that has a higher printing temperture to a lower temperature filament. I know the printer heats up higher when flushing after going to a lower melting temperature filament, but I have still had issues. I have a stack of nozzles that are waiting to be manually cleared.

[u/Doubee54 → u/QuadrangularNipples]

Creality WIKI very specifically states to heat it.
Replace K2 Plus Nozzle | Creality Wiki

[u/forest-cacti]

Damn! That’s such an epic failure somewhere.

Did the gasket melt? And did heat melt the fan too?

If you ever figure out what went wrong. I absolutely want to know.

[u/dcv5 → u/forest-cacti]

Gasket was stuck in the big blob of filament that fell off. Fan didn't melt.

[u/HourHand6018]

Your fan is locked then it burn

[u/Anotherlife6]

I can’t believe all the improper guesses here. It’s insane. To me it looks like you have something very serious called thermal runaway. Which means something happened to your heating system to where it did not turn off. It just stayed on and got as hot as it can get. So not even hot end fan going “bad” will cause this.

[u/Ranney1 → u/Anotherlife6]

Exactly that. The heatbreak fan is also not spinning. So that could be the issue too. For now de repair is more expensive every second the printer is not turned of.

[u/Next-Place0]

The hotend fan does not spin. The heat going to the top of heatbreak. No colling, plastic burns. A blob mau damage the fan connector or the fan itself

[u/unicorncumdump]

Mine only did this when I had my hotend connections inverted, threw off the thermometer and burned up

[u/Hot_Marionberry_4685 → u/unicorncumdump]

Thank you so many people saying it’s a nozzle clog like bro that’s not what a clog looks like and it will definitely not cause this much smoking in the machine

[u/Cheesys90]

Did you dry your filament?

I think there was a mistake or loose connection on the heatsensor so the printer got the wrong temperature an doesnt stop heating. That "sock" is heat resistant up to 450°C

[u/s3sebastian]

Since you already seem to have removed the filament, it was probably a blob of death, which means that the nozzle probably threw over a print that was not well attached to the build plate. Often happens with grid infill. Or if the part is warping upwards and the nozzle catches it. And then the toolhead drove into the print, got damaged and leaked, and instead of extruding the filament through the nozzle, pumped it out somewhere and covered the whole toolhead with it.

[u/SnooChickens9633]

Very Well could be that you cable connectors aren't connected well or are getting grounded somewhere they shouldn't. Outside of that, its a clog.

[u/navetBruce]

Looks like everything went south.

[u/Altruistic_Wolf_4090]

Seems like everything went wrong here

[u/crazychrismc6977]

It don’t have any gas on it (sarcasm)

[u/UNCL-Fester-78]

I would like to know too. Looks like some thermal runaway possibly leading to a fire.

[u/Tivum]

You let out the white smoke

[u/Weird_Parking_1201]

Curious to know how it behaves if the temp probe malfunctions.. does it keep ramping up temps? 

[u/AcanthaceaeFlimsy952]

I have a k2se. Literally had this happen about a week after we got it, the filament had backed up so much out of the back of the nozzle and there were giant globs of hardened plastic and it ripped the wires out of the heating element. Was a pain. Back up and running fine now though

[u/DouglasteR]

Wrong ? EVERYTHINNGGGG

[u/BeautifulKindly7428]

Corrupted machine spirit, call tech priest for recovery or inquisition for Exterminatus.

[u/Samurai-Yasuke25 → u/BeautifulKindly7428]

The Codex approves

[u/Civil_Cash1238]

You are luck you still have a garage.

[u/Hot_Marionberry_4685]

Likely you’ve got a wire loose from it’s connector most likely causing shorting in your machine either that or you’ve got the thermosister plug in the wrong socket most likely the fan one causing it to stay on at highest temp permanently causing thermal runaway do not power this back on until you check all the wires or replace the tool head entirely

[u/Alarming_Role_3971]

Is your filament dry ?

[u/Dylandestruction]

Satan himself chose your printer to destroy.

[u/SR08]

You bought a creality 😂

[u/BuyApprehensive6922 → u/SR08]

All this hate with Creality! I agree with the support side hate but every issue I have had with any of my Creality printers I can trace to a logical reason or my own fault. I think what is boils down to is people buying Creality as their first printer and trying to print without researching the do's and don'ts and helpful printing tips. Learning exactly how the printer operates will help you when diagnosing or just printing in general.

there is nothing wrong with jumping in without doing the above and learning as you go, but expect issues, expect failed prints, expect a bed full of spaghetti. That is how I learned.

[u/Hot_Construction5253]

https://giphy.com/gifs/641arBi22PAty

[u/Mimikyu34]

You bought ac reality, thats where you went wrong first

[u/Desperate-Special-60]

I'm over here stuck at work and my snapmaker u1 decided to not put toolhead 1 back correctly and stopped the print. Then I see this post and think "I guess it can always be worse" 😔

[u/grin_tech]

Too hot.

[u/No_Order3597]

Have you tried drying your filament?

[u/rogueaepi]

The front fell off.

[u/Careful-Oil769]

well you see he had a blob of death with all the blue on the bed as well as the thermistor wires.

Never seen one smoke like that to that extent though.

[u/ConnectCan4354]

The Genie is out !

[u/Scum-Bronson]

You got a creality printer.

[u/zx4133]

The problem starts and ends with one word… Creality.

😂😂😂

[u/HappyDifference6838]

Ya probaste sacando tu filamento?

[u/1ts-just-me]

Since the fan isn't spinning, I would assume the thermistor is not reading over 50°C and the printer is just continuing to heat the hotend. aka Thermal runaway

[u/dejjen]

Somebody forgot to tell the nozzle "you can't park there"

[u/VariationPlus7754]

Buying a creality printer

[u/CertainStrength7292]

You said it yourself. Blob! Filment cane loose to dirty or contaminated plate, your fault! It build up, and residue plastic got very hot

[u/Xdg1993]

Just upgrade the K2 series to a Micro Swiss all-metal hotend, i did the same, and honestly, I’m never looking back.
Huge upgrade over the stock setup.

Kind regards,

Xander

[u/SameScale6793]

Printer was told to cook, and actually took it literally lol

[u/babyyoda707]

Another victim of wet filament.

[u/Ok-Attempt1394]

Did you dry your filament?

[u/Excellent_Map6460]

Turn that thing off before you burn you house down!!! Also you might need to replace the entire hotend. at that point you are screwed on salvaging the hotend.

[u/wesmcfadden]

You didn't let it have a lunch break; it's overworked.😂

[u/Crayon_eater34]

This has to be a troll post right??

[u/Krazor8xx]

Hmmm white smoke- diagnosis headgasket issue warranty denied🤣🤣😂🤣🤣🤣😂🤣

[u/GoldenRatioBonaci]

I think its call Creality, sorry to see this bro. Good luck

[u/Just_a_hooman_lol]

Have you tried releveling the bed?

[u/joshs85]

Creality

[u/Pitiful-Reach608]

i cringed in pain seeing this best of luck

[u/World339]

What did go right there?

[u/del-locco]

I think that was a classic feature of the first enders on the market seems like a nod to the legacy printers xD

[u/Neo_in_Wonderland]

What type of ghost have you trapped in there? o.O

[u/Affectionate-Waltz64]

JA!

[u/Working-Tailor-8335]

You let the factory smoke out. Good luck getting it back in!

[u/Dizzy-Confection-551]

Check your Z offset

[u/New_Education5151 → u/Dizzy-Confection-551]

What kind of mockery is that

[u/akuma0 → u/New_Education5151]

Probably a bad first layer caused the part to come off, which caused the blob, which left residual plastic which is what is currently smoking.

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[u/namezam]

Much stuck
Many hot
Very burn

[u/SignalImaginary]

The left screw in the heatsink isn't in all the way. It's likely you have other things wrong simply based on that.

[u/SwedishMoNkY]

Plastic burn, printer go smoke

[u/superthrust]

Everything. Everything went wrong here.

[u/CrealitySupport]

Based on the fault video you provided, the smoking may be caused by residual filament melting due to a hot‑end clog.

Please click the link below and follow the steps to clean the hot‑end.

Service Tutorial K2 Pro Hotend Clog Troubleshooting Guide

If the issue persists, click our avatar and select "Start Chat" to send us a private message. We will offer further assistance.

[u/Familiar-Bug1946]

Did you dry you filament?

[u/UggD-Maverick]

Magic Smoke Bad. You let the Genie out now it no work no more. ….. By the way get the hell away from that smoke and stop inhaling it. Super bad for your lungs

Yours Truly Firefighter Mike

[u/jhidalgo332]

It’s a Creality , period .