Thermoplastics contract while cooling. If the part cools unevenly and internal stress exceeds bed adhesion, corners or larger regions can lift from the plate.
How do you recognize it?
- Lifted corners
- Curved bottom surface
- Part releases after several layers
- Nozzle later collides with raised geometry
Common causes
- Dirty build plate
- Drafts or a cold environment
- Too much part cooling
- Large sharp-cornered geometry
- Unsuitable bed/material temperature
What should you check first?
- Clean the plate thoroughly.
- Stabilize ambient conditions for shrink-prone materials.
- Use a brim or mouse ears only when geometry needs them.
- Check material-specific enclosure guidance.