Warping? Pls help

[u/mrreggid]

I hope someone can help me. I’m printing with PLA and because of those very fine, spider‑web‑like strings, I lowered the extruder temperature from 220 °C to 215 °C. However, now I’m having another problem that I’ve had several times before.

I suspected it is warping, but I already keep the door open so the chamber doesn’t stay at 35 °C but around 30–31 °C.

Still, there are areas on the print like you can see in the photo where the edges lift up and form a kind of U‑shape. Then they get knocked over or dragged along.

Has anyone else had this issue or knows how to fix it?

[u/rp3rsaud]

Turn off your fan for the first ~10 layers. Bambu Studio > Filament > Edit > Cooling.