Today I was printing some parts and I got these burn marks at the corners:
This is the first time I see this on this printer (Anycubic I3 Mega). I was using more or less the same settings (in Cura) as always, although I was using a new roll of PLA from a brand I haven't used before.
I was printing several parts in one job:
Most of them are somewhat affected:
Printing temperature: 200 °C Build Plate Temperature: 60 °C Printing Speed: 60 mm/s Travel speed: 200 mm/s