HomeTroubleshootingHeatcreep
Diagnostic Flow

Troubleshooting:
Heatcreep

Progressive under-extrusion after printing for a while

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 problem appear?

Related issues

🛠️Recommended calibration

Check these before changing random slicer values.

🌡️Temperature TowerCalibrationFind the real temperature window for this filament.↩️RetractionCalibrationReduce oozing after temp, flow and PA are correct.🔧PID TuningCalibrationStabilize hotend and bed temperatures before testing.
Open Calibration

📚Read the explanation

Understand why this symptom appears.

🔥The Hotend ExplainedArticleThermal control, heat creep and melt capacity.↩️What Retraction Actually DoesArticleRetraction releases pressure, not magic.
Open Knowledge Base

🎓Structured learning

Go deeper when the same problem keeps coming back.

🎓CN3D LearnLearnBuild the troubleshooting mindset instead of copying fixes.
Open Learn