Heat Creep with Advanced Filtration System
Hey, I just got my C1L this week and am/was super excited.
The first few prints came out very nice. I only printed PLA so far. After I installed the Advanced Filtration System, things changed however.
I had a lot of failed prints today, which were noticable through a clicking noise in the extruder and reduced to no extrusion at all. I researched and found a lot of similar posts about this issue and figured I am also having a heat creep problem (heatbreak temp above 38).
I now tinkered a bit with the settings and so far I am having success again by reducing nozzle temp to 210 and re-enabling the chamber fans manually, which are somehow not enabled anymore with the filtration system.
Can anybody relate to this issue and share some knowledge? Thank you!
RE: Heat Creep with Advanced Filtration System
You're not alone.. This exact situation is happening to me. I have also turned on the fans manually to 50%, print is still failing. I will try reducing the nozzle temps to what you mentioned and report back! Another thing I tried was backing off the tension of the filament roller 1/2 turn, no changes happened either..
RE: Heat Creep with Advanced Filtration System
If you are getting clogs caused by heat creep when printing PLA, then try printing with the door open.
RE: Heat Creep with Advanced Filtration System
Hello, I have recently installed an advanced filtration system. I was unable to complete a large project and was also struggling with nozzle clogging. I contacted Prusa Help and they advised me to return to the settings where the chamber fans are running and the additional system fan is not. However, this did not change the temperature inside. On the other hand, the default description (I use Polish in the printer) suggested that maximum speed/minimum speed (or something like that – a misinterpretation). In addition, the filtration system has a much more efficient fan, which bothered me. On a simple and long print, I started with the recommended settings and during printing I changed to the advanced filtration system. I played around with the settings and, strangely, the default fan power settings for the additional system were at 60-70 per cent (I'm not sure now). I set everything to Automatic and all values to 100%. From that moment on, the fan was able to run at full capacity, which lowered the temperature in the chamber by almost 8 degrees in a few moments. To sum up: All limits 100% (i.e. no limits), filter all materials - Disabled, Ventilation - Advanced filtration system (not off, not DIY). After that, I printed various items for over a month, including PLA, with no problems. Even though I currently have 24 degrees in the room due to other electronics.
RE:
Witam,
mam ten sam problem, jakich ustawień bym nie używał po około godzinie od rozpoczęcia wydruku filament przestaje być dozowany. Słychać wyrażne tykanie koła zębatego podającego filament. Dodam że w CORE ONE L mam doczepiony zaawansowany system filtracji. Czyściłem wielokrotnie komorę podawania filamentu, to są moje pierwsze wydruki także nie ma mowy o tym że jest zabrudzana komora pyłkami itd. Drukuję na filamencie dostarczonym przez PRUSA jako startowy PLA Galaxy. Zdjąłem nawet górną szybę żeby wentylacja była lepsza.
Czy możesz podpowiedzieć mi Mateusz jakie temp. STOŁU oraz DYSZY używasz przy wydruku z PLA. Czy sugerowane 230'C oraz 60'C stołu.\
Mam wrażenie żeby uzyskać mniejszą temp. w komorze należy te wartości temp. zmniejszyć.
Zmniejszyłem również prędkość wydruku do 50% żeby się nie przegrzewało wszystko za szybko.
Wszystkie te zmiany na nic.
Z góry dziękuję za wasze sugestie.
ENG.
Hello, I have the same problem. No matter what settings I use, after about an hour of starting a print, the filament stops dispensing. I can hear a distinct ticking sound from the filament feed gear. I should add that I have an advanced filtration system installed on my CORE ONE L. I've cleaned the filament feed chamber numerous times; these are my first prints, so there's no sign of the chamber getting dirty with dust, etc. I'm printing with filament supplied by PRUSA as my starting PLA Galaxy. I even removed the top glass to improve ventilation. Mateusz, could you tell me what bed and nozzle temperatures you use when printing with PLA? Are 230°C and 60°C the suggested bed temperatures? I have a feeling that to achieve a lower chamber temperature, these temperatures need to be reduced. I also reduced the print speed to 50% to prevent everything from overheating too quickly. All these changes were for nothing.
Thank you in advance for your suggestions.
RE:
...sounds like you have a clogged nozzle. This can happen when the filaments breaks and small parts "block" the nextruder nozzle and the extruder is not able to pussh the filament down.
Have a look here:
https://help.prusa3d.com/article/clogged-nozzle-core-one-core-one-l-xl-mk4-s-mk3-9-s_411823
- a similiar tool used in the video is eg. the Creality Glog Pok
Core One L
RE: Heat Creep with Advanced Filtration System
Dear Alphasigma,
Thank you for your suggestion. That would be true if that were the reason. Unfortunately, this time it's not that
I can safely say that I am a professor of stripping and cleaning Nextruder . 🤣 .
RE: Heat Creep with Advanced Filtration System
@ Pavel Kuznicki
Does it work now...does the "clicking noise" disappeared?
Core One L
RE: Heat Creep with Advanced Filtration System
I popped the top lid off and all issues went away. Been running like a sewing maching! Have not tried any other filiments yet though either to see how it works with the carbon filter actually needing to be used..
RE: Heat Creep with Advanced Filtration System
I popped the top lid off and all issues went away. Been running like a sewing maching! Have not tried any other filiments yet though either to see how it works with the carbon filter actually needing to be used..
So you took off the top of the printer? Then it was a heat creep issue. By any chance then, when you were printing PLA, was the top vent open or closed?
RE: Heat Creep with Advanced Filtration System
The vent was already open, and both sets of fans were on 80% with a failure. Took the top off, no fans running, and the chattering/feeding issue was fixed. Yes on PLA that comes from prusa.
RE: Heat Creep with Advanced Filtration System
PLA drukuję przy otwartej komorze, stół 60'C, dysza 235'C. Początkowo miałem podobne do Twoich problemy (nie podawanie filamentu w trakcie drukowania, tykanie koła zębatego), które znikły jak zacząłem podawać filament ze szpuli umieszczonej w suszarce na łożyskowanych rolkach - bo ten wieszak na szpulę na bocznej ściance jednak tworzy nie przewidywalne opory dla obrotu szpuli, zaś na te opory extruder jest jakby wrażliwszy wtedy, gdy trochę popracuje i się nagrzeje... Możesz też sprawdzić, czy wydruk przypadkiem nie wywalał się w momencie, jak drukarka rozpoczynała wypełniać z większymi prędkościami - tutaj problematyczne może być nie tyle ustawienie wysokiej prędkości druku, co akceleracji prędkości - miałem to nie dawno przy drukowaniu PETG i oprócz zmniejszenia maksymalnych prędkości drukowania do 100, jeszcze zmniejszyłem o ok. 10% największe przyspieszenia (z 5000 na 4500, z 4000 na 3600). Temperatur stołu i dyszy nie zmniejszam, raczej zwiększam o 2-3 stopnie dla lepszej adhezji. Po tych zmianach drukuję bez problemów.
Witam,
mam ten sam problem, jakich ustawień bym nie używał po około godzinie od rozpoczęcia wydruku filament przestaje być dozowany. Słychać wyrażne tykanie koła zębatego podającego filament. Dodam że w CORE ONE L mam doczepiony zaawansowany system filtracji. Czyściłem wielokrotnie komorę podawania filamentu, to są moje pierwsze wydruki także nie ma mowy o tym że jest zabrudzana komora pyłkami itd. Drukuję na filamencie dostarczonym przez PRUSA jako startowy PLA Galaxy. Zdjąłem nawet górną szybę żeby wentylacja była lepsza.
Czy możesz podpowiedzieć mi Mateusz jakie temp. STOŁU oraz DYSZY używasz przy wydruku z PLA. Czy sugerowane 230'C oraz 60'C stołu.\
Mam wrażenie żeby uzyskać mniejszą temp. w komorze należy te wartości temp. zmniejszyć.
Zmniejszyłem również prędkość wydruku do 50% żeby się nie przegrzewało wszystko za szybko.
Wszystkie te zmiany na nic.
Z góry dziękuję za wasze sugestie.
ENG.
Hello, I have the same problem. No matter what settings I use, after about an hour of starting a print, the filament stops dispensing. I can hear a distinct ticking sound from the filament feed gear. I should add that I have an advanced filtration system installed on my CORE ONE L. I've cleaned the filament feed chamber numerous times; these are my first prints, so there's no sign of the chamber getting dirty with dust, etc. I'm printing with filament supplied by PRUSA as my starting PLA Galaxy. I even removed the top glass to improve ventilation. Mateusz, could you tell me what bed and nozzle temperatures you use when printing with PLA? Are 230°C and 60°C the suggested bed temperatures? I have a feeling that to achieve a lower chamber temperature, these temperatures need to be reduced. I also reduced the print speed to 50% to prevent everything from overheating too quickly. All these changes were for nothing.
Thank you in advance for your suggestions.
RE: Heat Creep with Advanced Filtration System
I have experienced clicking, which at first I thought it was clogging. It was not. Before you assume this is heat creep which likely it is not:
A lot of the profiles used for PLA were too fast and cold for melting PLA. In other words, make sure you tune your filament before using it. Do not use another machine and copy its settings nor assume the profiles are correct, a lot of the faster profiles are not tuned properly.
RE: Heat Creep with Advanced Filtration System
and wanted to add, if you wanted to test this out immediately after a failed print : Replace the nozzle with another with the same specs. IF you hear the same clicking, your profile is not tuned for the filament, speed and temp.