HomeTroubleshootingZ-banding
Diagnostic Flow

Troubleshooting:
Z-banding

Horizontal bands or repeating ridges at regular intervals

Time
8–15 min
🎯
Mode
Guided
Impact
Advanced
📊
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

At what interval do the Z-banding lines repeat?

Interval is the key: ~2mm = T8 lead screw pitch (2mm/rotation). ~8mm = T8 4-start pitch. Irregular = coupler or alignment issue.

Related issues

🛠️Recommended calibration

Check these before changing random slicer values.

📏Skew CorrectionCalibrationFix square and diagonal dimensional errors.💧Flow Rate / EMCalibrationDial in exact material deposition.
Open Calibration

📚Read the explanation

Understand why this symptom appears.

📋Filament Calibration OrderArticleWhy each calibration step affects the next.
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