ExtrudoWhy is my 3D print curling corners?
Curling corners is usually caused by the bed is a little too cool or there's a draft cooling one side of the print faster. Corners of a PLA print lift slightly off the bed, a milder version of warping
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Quick reference
| Defect | Most likely cause | First thing to try |
|---|---|---|
| Curling corners | The bed is a little too cool or there's a draft cooling one side of the print faster | Raise bed temperature slightly |
What it looks like
Corners of a PLA print lift slightly off the bed, a milder version of warping
Most likely cause
The bed is a little too cool or there's a draft cooling one side of the print faster
How do I fix curling corners? Step-by-step
- 1
Raise bed temperature slightly
Increase bed temperature by 5°C (PLA usually prints well around 55-60°C).
Done when: Corners stay flat through the full print
- 2
Block nearby drafts
Move the printer away from windows, fans, or air vents, or add a simple draft shield.
Done when: No noticeable airflow near the print
- 3
Add a small brim
Add a 3-5mm brim around the base for extra holding power at the corners.
Done when: Brim stays flat and attached through the print
Frequently asked
What causes curling corners in 3D prints?
The bed is a little too cool or there's a draft cooling one side of the print faster
How do I fix curling corners on my printer?
Follow the step-by-step fix above, starting with "Raise bed temperature slightly". Each step includes a "done when" check so you know whether it worked before moving on.
Is this fix confirmed by other makers?
This entry is part of Extrudo's seeded defect library. Confirmation counts appear once real users report the fix worked.
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