Retraction

Also known as: Retract, Filament Retraction

intermediate Slicer Settings ⚙️ Slicer Setting

Pulling filament back into the nozzle to prevent oozing during travel moves.

Retraction is when the extruder motor reverses to pull filament back from the nozzle, reducing pressure and preventing filament from oozing out during travel moves.

Why It Matters

Without retraction, molten filament continues to drip from the nozzle as the print head moves between areas, leaving thin strings or blobs on your print. Proper retraction settings are essential for clean prints.

Key Settings

Retraction Distance

How far the filament is pulled back:

  • Direct Drive extruders: 0.5-2mm
  • Bowden extruders: 3-7mm (longer filament path requires more retraction)

Retraction Speed

How fast the filament retracts:

  • Typical range: 25-50mm/s
  • Too slow: Filament still oozes
  • Too fast: Can grind filament or skip steps
  • Retraction Prime Speed: Speed to push filament back after retraction
  • Minimum Travel: Only retract for moves longer than this distance
  • Z Hop: Lift nozzle during retraction to avoid hitting the print

Troubleshooting

Still getting stringing?

  • Increase retraction distance slightly
  • Lower print temperature
  • Check for wet filament

Gaps after retraction?

  • Decrease retraction distance
  • Add extra prime amount
  • Slow down retraction speed