I finally have good prints happening again.
I picked up cleaning filament and printed about a foot of that. After some cold pulls with the cleaning filament, I’m doing cold pulls after every print.
I found I can still get a garbage print with PETG if I print a test batarang and immediately print something else without doing a cold pull.
This last print is looking perfect. (11 hours into a 33 hour print)
When adjusting the live-z setting for the MK3, this image is the first thing to compare.
I replaced the [Y-Belt Idler]