More than half of my current prints are being ruined by black stains in the outer wall. Imgur: The magic of the Internet
This is happening over multiple spools, plates, and printers. It appears to happen on random layers, regardless of file - this is the exact same model with the issue appearing in two different locations Imgur: The magic of the Internet
I’ve cleaned all the stray filament bits out of the printers, cleaned the build plate, and I’m using a brand new (literally just out of the box) hotend. If this is caused by bits of filament sticking to the print I do not know where they are coming from.
I don’t know what to even try at this point. If it was only one filament then I would chalk it up to just a bad spool.
