3D Printer Under-Extrusion: Troubleshooting Guide

This guide helps narrow down common causes without changing several settings at once.

Common causes

• Temperature or cooling settings may not match the material.
• First-layer, adhesion or slicer settings may need attention.
• Filament condition or a mechanical factor may affect the result.

Useful checks

1. Start with the settings recommended for your printer and filament.
2. Inspect the first layer, filament path and relevant mechanical components.
3. Change one variable at a time and run a small test before making further changes.

Causes vary by machine, filament and profile. Follow the manufacturer’s instructions when working on the printer.