My 3D print shows unwanted line formation

My 3D print shows unwanted line formation

How can you solve or prevent this line formation?

• Use high-quality filament

  This form of line formation is largely caused by poor quality filament. For example, if the diameter of the filament has a deviation of 5% over the entire length, this means that the filament will show a deviation of 0.05mm during printing. It is therefore very important to use consistent and high-quality 3D filament.

• Ensure stable extruder temperature

  Most 3D printers use a PID controller to regulate the temperature of the extruder. If this PID controller is not adjusted correctly, the temperature can fluctuate over time. Because plastic filament reacts differently to higher and lower temperatures, visible ridges are created in the print that repeat in a fixed pattern. As a rule, the temperature of the extruder should not deviate by more than two degrees. Does the temperature deviate more than two degrees? Then it is wise to recalibrate the PID controller.

• Use a flat and firm print bed

  If your print bed is not completely flat and moves during printing, this can cause the nozzle to take a different position with each layer. As a result, the thickness can vary per layer and your prints will show unwanted line formation. Therefore, check that all screws and nuts are tight. Do the same with the extruder, the tension of the belts and the adjustment of the print bed.

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