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Best I can tell, my z-seam after a hop is under extruding? I tried looking at all3dp's troubleshooting page, but couldn't find this specific issue. Can someone fill me in on the name of this so I can best Google it? I'd also be happy to take pointers, but I do try to be self sufficient.
I think you might be on to something with retraction. The open cubes didn't show it with the solid corner. I'll be able to print another test print tomorrow once the second copy of this print is done. I'll make a smaller cup tomorrow.
One question, when I manually feed the PETG into the 0.8 nozzle, the filament feels... Gummy? Springy? Not at all like when I've typically fed PLA into 0.4mm. I wonder if the springyness is leading to weird retraction
PLA is much harder and more brittle. Also PETG loves moisture and printers hate wet PETG, just saying