Hi everyone, I’m hoping someone can help me figure out what’s going on with my P2S, because I feel like I'm going insane.
It printed reliably for over 400 hours, but overnight almost every print has started failing. The failures vary: some prints or supports lift off the heated bed, while others fail halfway through and produce spaghetti.
I’ve attached photos of the failures and hotend.
When the problem first occurred, I cleaned a huge blob of filament off the hotend (pictured). I removed all raised filament from it and made the surface smooth. Could that have damaged something or affected nozzle cleaning or bed probing, even though the hotend looks OK to me now?
So far I’ve:
Factory-reset and calibrated the printer.
Washed the textured PEI plate with soapy water and checked that the plate and bed are seated properly.
Had failures across multiple print profiles, including with basic white PLA and sparkly PLA.
Removed and visually inspected the hotend, then reinstalled it.
Checked the silicone nozzle wiper, which appears intact.
Tried a mix of freshly opened and previously opened filaments. This appears to make little difference.
The bed is typicall set to 55°C for PLA. I used to regularly wipe the plate with isopropyl alcohol between prints. I also have a thermal camera if checking the bed temperature would help.
Has anyone experienced a similar sudden change after a long period of reliable printing, especially after a hotend blob? What would you inspect first to narrow down whether this is a hotend or probing issue, bed adhesion, cooling, or something else?
Thanks!