Overture PETG help

Any ideas? Overture white petg. Generic profile, works with some older silver I have just fine.

I watched the first layer go down perfectly. Watched about half of the second before I walked away. When I looked again not even two layers later it was like you see in the photo. Little crumbles everywhere.

Edit: just tried the other petg and is doing it as well.


It looks similar to my problem from last week.

Have you tried the following settings

After several weeks and endless testing (incl. Bambulab support), the issue was finally solved by @ Thrawn.
The artefacts are caused by the setting “slow down for overhang” in the Bambulab studio.

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i will try this. i got rid of most of it by simply slowing everything down drastically.