I have bought and used almost every single one of Bambu’s PETG-HF filament and they all for the most part print very similar and print without issues. However one color, the Forest Green specifically, will not print right no matter what.
It has random issues from not adhering well to bed, stringing and clumps, very inconsistent and rough wall finish, poor top surface, etc. If a filament can cause an issue, this one has done everything except outright clogging. Every other color prints flawlessly with no issues, only issue I had was with the white, but it was wet filament so drying it solved that.
With this filament I have tried drying it numerous times and didn’t help. I tried different build plates, different size nozzles, it’s been tested in multiple P1S units, X1C, and an H2D. I have tried differing layer heights, print speeds, temperatures, etc. Nothing will make this filament print correctly which makes me very sad because it is a beautiful color. I’m almost thinking I got a bad roll or something, but they are out of stock so can’t check. I have also tried automatic and manual flow rate and dynamic calibrations.
I’m just at a total loss, because if I put in any other roll of PETG-HF, even straight out of the package with most of them, it prints perfectly with zero issues. It’s just this single color and it happens in every machine I own.