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Under-extrusion (insufficient flow)
3 Causes3 Solutions
Symptoms
Walls show gaps, top layers look sparse, and lines may be incomplete or brittle.
⚡ Quick fix
Raise nozzle temperature by 5-10 C and verify nozzle condition plus filament feed path.
Causes
- ▸Profile mismatch between material and print settings.
- ▸Mechanical setup drift (belt tension, leveling, or nozzle condition).
- ▸Unstable temperature or moisture-sensitive filament handling.
Solutions
- ✓Re-run a short calibration print and adjust one parameter at a time.
- ✓Inspect hardware path: nozzle, extruder grip, bed condition, and belts.
- ✓Use material-specific presets and confirm temperatures with a test model.