STLBEAST Hub Guide

How to fix warping and lifted corners

Warping happens when printed plastic shrinks as it cools and pulls corners away from the bed. The fix usually starts with first-layer contact, bed temperature, cooling, and drafts.

Quick checksPractical fixesSettings guidanceMember tools

Start with the fast checks

Focus on adhesion and temperature stability first. Warping gets worse when the first layer is weak or the part cools unevenly.

Clean the build surface so oils and dust do not weaken adhesion.
Re-check Z offset so the first layer is pressed enough to bond without scraping.
Use the recommended bed temperature for the material and avoid drafts.
Add a brim for parts with sharp corners or a small bed contact area.
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Likely causes

Weak first layerPoor contact makes the part easier to pull off the bed.
Cooling too fastFan speed, drafts, or cold room air can shrink edges quickly.
Material shrinkageABS, ASA, PETG, and large PLA parts can all pull upward if conditions are wrong.
Sharp geometryLong thin parts and sharp corners are more likely to curl.

Quick FAQ

Is glue always required?

No. Surface cleaning, Z offset, bed temperature, and brim settings often solve the issue first.

Does an enclosure help?

For high-shrink materials, an enclosure can reduce drafts and temperature swings.

Why does only one corner lift?

Uneven bed surface, airflow, or a local adhesion problem can affect one corner first.