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ASA warping and corner lift

Symptom: Corners lift or layers split as the part cools.

Most likely causes

  • Open or unstable chamber
  • Drafts
  • Insufficient bed adhesion
  • Part cooling too high

Test in this order

  1. Use an enclosure and pre-warm it before starting.
  2. Clean the plate and add a brim for large footprints.
  3. Keep part cooling off or low unless bridges require it.
  4. Reduce sharp corners with mouse ears or change orientation.
Stop changing multiple settings at once. Save the model, filament condition and room conditions, then change one variable and compare.

Relevant starting profiles

ASA settingsChoose your printer for a hardware-aware profile

Reviewed 2026-07-22. Results vary by filament formulation, moisture, nozzle and slicer.