Home›Troubleshooting›Under Extrusion

Diagnostic Flow

Troubleshooting:
Under Extrusion

Gaps, thin lines, weak walls or missing material

⏱

Time

5–10 min

🎯

Mode

Guided

⚡

Impact

Critical

📉

Answer questions. Get the cause.

This flow keeps the tested CN3D diagnostic logic and only changes the presentation.

1

Diagnostic Progress

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Start by describing what you see. Your answers will build a diagnostic path.

Step 1 of 5

How does the under-extrusion appear?

Related issues

Too much material

Progressive under-extrusion

🛠️Recommended calibration

Check these before changing random slicer values.

⚙️Extruder StepsCalibrationSet the mechanical extrusion baseline first.›🌡️Temperature TowerCalibrationFind the real temperature window for this filament.›⚡Max Volumetric FlowCalibrationFind the real melt limit of your hotend.›💧Flow Rate / EMCalibrationDial in exact material deposition.›

Open Calibration →

📚Read the explanation

Understand why this symptom appears.

🔥The Hotend ExplainedArticleThermal control, heat creep and melt capacity.›📋Filament Calibration OrderArticleWhy each calibration step affects the next.›⚙️Types of ExtrudersArticleBowden, Direct Drive and how they change settings.›

Open Knowledge Base →

🎓Structured learning

Go deeper when the same problem keeps coming back.

🎓CN3D LearnLearnBuild the troubleshooting mindset instead of copying fixes.›