I’ve been printing all white things and have recently started getting black dark rings at random portions of the print. The layer height it happens at varies a bit depending on the model so it’s not at the exact same height every time.
I havent changed the print settings at all, most of my prints use support cubic infill with 15-20% infill and infill combination. Usually 2-3 walls as well.
Any hints or ideas as to why this could be happening?
When slicing, check the flow parameter on these sections of the model, is it uniform? You must have ruled out insufficient cleaning of the nozzle when changing the filament, right? If there was no filament change at all and your nozzle is 100% clean and there could be no mixing of the plastic, then it could be a peculiarity of this plastic and its overheating. some plastics change color if they are overheated (it can overheat if you have low flow on this section).
I hope that helps.
