Good layer bonding is critical for strong, functional 3D prints. When bonding fails, prints may look fine but easily break along layer lines, making them structurally weak. This issue often comes down to extrusion temperature, cooling settings, or filament quality.
Symptoms:
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Prints delaminate along layer lines.
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Weak, brittle parts that break under stress.
Causes:
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Nozzle temp too low.
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Excessive part cooling.
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Wet filament or poor extrusion.
Troubleshooting Steps:
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Raise nozzle temp by 5–15 °C.
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Reduce cooling fan speed.
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Dry filament thoroughly.
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Print slower to allow better bonding.
Prevention Tips:
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Use correct temp range for material.
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Ensure filament is stored dry.
