Problem printing with petg
Hello all,
when I try to print with petg (more specifically, my rolls are the prusa transparent purple petg and the red, green and blue transparent prusaments) this happens after some time:
I'm using an MK4, with the obxidian nozzle. I have attached the 3mf file for more info. Could you please help me troubleshoot this?
Thanks in advance
RE: Problem printing with petg
I couldn't edit the OP, so I'll post it here.
The print was properly adhered to the bed, I couldn't find any lifted corner or something like that.
RE: Problem printing with petg
Looks like underextrusion. I had a simmilar problem with TPU. The filament was a bit sticking on the spool, leading to additional resistance which could not be compensated by nextruder. The MMU is passive once the nextruder has taken the filament. Try to unload some meter of filament manually and see if it's getting better.
You can also try to increase nozzle temperature or reduce max volumetric speed (filament advanced settings)
RE: Problem printing with petg
Would also look at how you store your filament.
PETG is not easy to keep dry. I keep mine at between 20 and 30% relative humidity and that seems to work well
Tom
RE:
Looks like underextrusion. I had a simmilar problem with TPU. The filament was a bit sticking on the spool, leading to additional resistance which could not be compensated by nextruder. The MMU is passive once the nextruder has taken the filament. Try to unload some meter of filament manually and see if it's getting better.
You can also try to increase nozzle temperature or reduce max volumetric speed (filament advanced settings)
Thanks for answering, I'll try both of your suggestions.
@thomas-lynch I store the filament in a box that at most has 15% humidity,