Edges of printed parts lifting from the bed. Especially common in large prints and corners.
Symptoms
Corners of print lifting from bed
Print detaching from bed during printing
Bottom surface curling up, not flat
Edges of large prints lifting
Main Causes
1. Insufficient Bed Temperature
Low bed temperature reduces adhesion, causing warping due to shrinkage during cooling. Especially noticeable with high-shrinkage filaments like ABS and ASA.
2. Excessive Cooling
Too much part cooling creates temperature differences between layers, causing internal stress and warping.
3. Poor Adhesion
Dirty bed surface or improper first layer settings result in insufficient initial adhesion, making warping more likely.
4. Environmental Temperature
Low room temperature or direct airflow from air conditioning causes rapid cooling and warping.
Solutions & Checkpoints
Increase Bed Temperature
Set appropriate bed temperature for the filament.
• PLA: 60-70°C (usually 60°C is sufficient)
• PETG: 70-80°C
• ABS/ASA: 90-110°C (enclosure recommended)
• PC: 100-120°C
Adjust Fan Speed
Keep fan low or off for initial layers, gradually increase.
• First 3-5 layers: fan 0-20%
• Gradually increase to target speed
• ABS/ASA: keep fan low overall (0-30%)
Use Brim or Raft
Increase contact area to prevent warping.
• Brim: 5-10mm width (small to medium prints)
• Raft: effective for large prints or warp-prone materials
• Skirt: not effective for warping
Clean Bed Surface
Regular cleaning maintains adhesion.
• Remove oils with IPA or ethanol
• Use adhesive (glue stick, etc.) if needed
• Light sanding effective for PEI sheets
Use Enclosure
Especially effective for high-shrinkage materials like ABS/ASA.
