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QUESTIONWarpSpeed

Bambu P1S corners lifting on wide ABS parts even with the door shut

Small ABS parts are fine. On a 180 mm wide enclosure panel, the front corners start lifting after roughly 20 layers. Bed is clean and the chamber has been preheated. What change tends to make the biggest difference?

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BrimFirst

For a part that wide I would try a brim before changing temperatures. If the chamber is already warm, corner lift is often just the shrink force exceeding the contact area.

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QuietStepper

Check for a draft from the aux fan too. On wide ABS, asymmetric cooling can be surprisingly obvious even inside an enclosure.

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