PETG for PLA support interface clogs P1S poop chute.
Well, I've been using Bambu PETG Translucent as support interface for PLA prints successfully in the past with the P1S using the stainless steel 0.4 mm hotend and also the hardened steel 0.6 mm hotend. When I started printing 150 mm Star Wars figures though with lots of details and filament changes and tree supports it all started going downhill with PETG-PLA poop getting stuck in the poop chute after 250-300 changes. I started have fails.
So I thought it was a nice time to upgrade to an E3D obxidian 0.4 mm hotend and calibrated printer and filaments again. I also used some custom g-code to make more and stronger purge taps (printer - > filament g-code) and also used aluminum foil tape in the inside of the chute. Also I cleaned my hotend after heating it. No PETG or anything on that hotend but I did just to get it out of the way. Lastly I used even a purge cube to make the printer do less filament swaps. Still I had to stop a print at layer 350/580 cos poop started clogging the chute.
I am at a loss. Bigger prints come out fine. Anything with intricate details or lots of swaps with PETG ends up clogging the poop chute. AMS 1 shows no humidity (A). Filaments were dried. Maybe mess with purge volumes? Any tips?