Horrendous smell of the AC bed
Hi,
I just wanted to ask, if your printer also smells like burning acrylic. I had my first C1L shipped about 2 months ago. Initially was everything okay, but after around 2 weeks it started to smell horribly It was also throwing "AC link lost" faults and ruining my expensive prints from nylon. So i returned this printer to Prusa. They've send me a replacement printer (that was nice from them). Everything was okay, but now the same horrendous smell has appeared on this new printer after just 1 week. I have a feeling, that it needs to be a "feature" of all the C1L. I highly suspect the orange insulation under the heated bed. I print only nylon, so the heated bed is all the time around 115 C and chamber 60C.
I am really sad, that i have to go through this. I love the print quality (just awesome), but these things just bother me and i even had thoughts about going the different route... I cannot sit near my printer, it smells really bad and toxic.
Is there anyone else, who prints from higher temp filaments and having this issue?
1x Prusa Mini (HT modded)
1x Modded MK3.5 "HT" (450C nozzle temp)
1x Core One L
1x Modded Core One + (70C chamber temp, 450C nozzle)
Contact Prusa Support via chat. A single instance 'fixed' by replacement may get written off as happenstance but a repeating/repeatable issue gives them something to work with.
Cheerio,
RE: Horrendous smell of the AC bed
Yea, i will write them again. But i think i maybe found the culprit. Its 99% the same "death smell" as with Vorons. Seems, that its coming from the adhesive (probably also 3M 468MP) used on the heatbed. That adhesive starts to smell from 115C and above and never dissapears. So i am again stuck with a death smelling printer. This is a problem, Prusa needs to fix. And I am convinced, that all the printers are affected. 🙄 I think more cases will appear with the HT hotend and people starting to print HT materials with the necessity of high bed temps...
1x Prusa Mini (HT modded)
1x Modded MK3.5 "HT" (450C nozzle temp)
1x Core One L
1x Modded Core One + (70C chamber temp, 450C nozzle)
RE: Horrendous smell of the AC bed
My C1L smells really bad, though I only noticed it after I was printing CF-ABS, just a half spool, even weeks later I could still smell it. So I was atributing it to that. Even now, after printing pla and petg for weeks, when I open the door after a day or 2 later, there is a bad smell, though it has improved. I did make an ABS side panel from the filament and added the creatilty heater, alot of variable to say which is causing the stink. I think more it absorbs odors very well, possibly the acrylic panels. Nylon does produce an odor.
Core One L MMU3, MK3S
RE: Horrendous smell of the AC bed
ABS out-gasses styrene even after printed. PC and nylon also have this issue with out gassing.
RE: Horrendous smell of the AC bed
Well, i have two modded Core One's and no smell even when i have my bed @ 120-125C (my typical temperature because of no active chamber heater). I know, how the nylon smells. This is just not it. Its coming from the bed.
Ruebarb: Same story like mine. I think you "activated" the adhesive with higher bed temp (110-115C) and it will now stink like burned acrylic.
1x Prusa Mini (HT modded)
1x Modded MK3.5 "HT" (450C nozzle temp)
1x Core One L
1x Modded Core One + (70C chamber temp, 450C nozzle)
RE: Horrendous smell of the AC bed
The idea that the adhesive at high temp, is the culprit is a very interesting one. I did do a heat-up the printer to try and cook off the ABS smell at one point and it the small got worse, which I was confused about. This could explain why I can't get it to go away. I had to improve the advanced filtration and run a room air filter to compensate.
Core One L MMU3, MK3S
RE: Horrendous smell of the AC bed
Yep, now its sounds 100% the adhesive. Try to google "Death smell Voron" or "3M 468MP smell" and you will notice the same symptoms and smell description. Once you go around the 115C mark, the smell will likely never dissapear. So even if Prusa would send me 10 new printers, they all would smell the same after a while.
1x Prusa Mini (HT modded)
1x Modded MK3.5 "HT" (450C nozzle temp)
1x Core One L
1x Modded Core One + (70C chamber temp, 450C nozzle)
RE: Horrendous smell of the AC bed
As I think back, the smell was the worst while the printer was just sitting there reaching temp. I actually changed the G code to run the filtration while heating up, to help with the smell.
Core One L MMU3, MK3S
RE: Horrendous smell of the AC bed
I have found a quick and dirty temporary "solution". Throw a big blanket over the printer, install the advanced filtration addon and swap the filter around (charcoal closer to printer) and run the fan at 40% all the time. But this needs to be adressed and the Prusa development team should know about this issue. Because like i wrote, this WILL be a big problem with the official HT hotend released. Also we should not solve these problems on a 2000 usd printer...
1x Prusa Mini (HT modded)
1x Modded MK3.5 "HT" (450C nozzle temp)
1x Core One L
1x Modded Core One + (70C chamber temp, 450C nozzle)
RE: Horrendous smell of the AC bed
I have found a quick and dirty temporary "solution". Throw a big blanket over the printer, install the advanced filtration addon and swap the filter around (charcoal closer to printer) and run the fan at 40% all the time. But this needs to be adressed and the Prusa development team should know about this issue. Because like i wrote, this WILL be a big problem with the official HT hotend released. Also we should not solve these problems on a 2000 usd printer...
1x Prusa Mini (HT modded)
1x Modded MK3.5 "HT" (450C nozzle temp)
1x Core One L
1x Modded Core One + (70C chamber temp, 450C nozzle)
Yea, i will write them again.
Don't email, use Chat.
Cheerio,