RE: Nozzle cleaning consistently fails with PETG
Thank you for updating. I thought that this would be the issue in my case, but unfortunately, the cleaning problem occurred on every bed finish(smooth and satin) with every material(pla,pet-g, ASA, PC,tpu). It is so annoying that sometimes it takes 3-4 tries and up to 20 minutes to complete, so if I need to print something quickly, I just use another printer.
RE: Nozzle cleaning consistently fails with PETG
You're missing the point. My nozzle was perfectly clean when it failed. It's not that you have to clean it with a wire brush, the problem is that something is wrong with how it works now, and it should be repaired with the next Firmware update. I repeat, it only happens with a textured plate.
Apologies, my post was aimed at the members who expressed that cleaning the nozzle with a brush was perfectly acceptable.
Not the issue here, but if you think you'll never need to clean your nozzle then you'll eventually have problems. No automated process is going to clean the buildup off of your nozzle, especially when printing PETG, PCCF, ASA etc. If you print exclusively PLA, then maybe, but it will still build up over time around the nozzle and tip.
It's a good idea to check your nozzle before starting your print.
RE: Nozzle cleaning consistently fails with PETG
You're missing the point. My nozzle was perfectly clean when it failed. It's not that you have to clean it with a wire brush, the problem is that something is wrong with how it works now, and it should be repaired with the next Firmware update. I repeat, it only happens with a textured plate.
Apologies, my post was aimed at the members who expressed that cleaning the nozzle with a brush was perfectly acceptable.
Not the issue here, but if you think you'll never need to clean your nozzle then you'll eventually have problems. No automated process is going to clean the buildup off of your nozzle, especially when printing PETG, PCCF, ASA etc. If you print exclusively PLA, then maybe, but it will still build up over time around the nozzle and tip.
It's a good idea to check your nozzle before starting your print.
I'm under no illusion that the nozzle will not need cleaning intermittently, that makes perfect sense. What doesn't, is that a member alluded to the fact that cleaning the nozzle would stop the nozzle clean error reported by a few other members to get the printer to start. Drying filament was mentioned, but was then eliminated in a rebuttal from others. I believe the issue is that oozing was not cleaned from the nozzle before bed levelling causing an error that delayed prints. Having to use a brush to clean the nozzle before a print has started, when the nozzle should be cleaned during the automated startup process was where I was aiming my comment. Please accept my apologies if I have the wrong end of the 3D printed stick, but that's what I was taking from it.
Scott
RE: Nozzle cleaning consistently fails with PETG
Hey dude. Just coz I said it worked doesn’t mean I find it acceptable. But a workaround is a workaround right…?
RE: Nozzle cleaning consistently fails with PETG
After a week of experimenting, here is the workaround that works for me. The problem is filament leaking from the nozzle when nozzle cleaning is in progress and of course during probing routine. To prevent this I just load filament, set nozzle temperature aprox 10°C higher then print temperature of respective material and let the printer 5-10mins at rest. This allows all the content from inside of the nozzle to drain. I just remove the leaked piece hanging from the nozzle (often just drop down itself) and start the print. Nozzle cleaning routine then passes without any problem as well as probing routine which in this case doesn’t leave dots of filament on the sheet. I know, it’s not perfect, but it saves my nerves until Prusa solve this in firmware. Happy printing!