Tips for avoiding stringing when 3D printing

Tipps zur Vermeidung von Stringing beim 3D-Druck - 3ddruckboss

What is stringing in 3D printing?

3D printing can cause unwanted threads or "strings" to appear between the printed objects or locations. This phenomenon is called stringing and can affect the end result of your 3D printing projects.

Why does stringing occur?

Stringing typically occurs when melted filament drips over open areas during printing. This can be due to various factors including:

1. Temperature

Printing temperature can have a big impact on whether stringing occurs or not. When the filament is too hot, it tends to spread and string more easily. It is important to know and adjust the optimal printing temperature for the filament used.

2. Print speed

A print speed that is too high can also lead to stringing as the filament does not have enough time to solidify between layers. Reducing the print speed can often resolve this problem.

3. Retraction Settings

The Retraction settings control how the filament is retracted when the print head is moved over open areas of the model. Insufficient retraction can cause molten filament to continue flowing and cause stringing.

4. Filament quality

The quality of the filament used can also play a role. Poor quality or moisture in the filament can lead to undesirable stringing.

Tips to avoid stringing

1. Optimize the printing temperature

Experiment with different printing temperatures to find the optimal setting for the filament you are using. A lower temperature can help reduce stringing without affecting print quality.

2. Adjust the retraction

Optimize the retraction settings in your printer software to ensure the filament retracts properly when moving over open areas of the model. This can help minimize the occurrence of stringing.

3. Check the print speed

Reduce the print speed to ensure the filament has enough time to solidify between layers. This can help prevent stringing and improve print quality.

4. Use high quality filament

Invest in high-quality filament from trusted manufacturers to ensure you get the best possible printing results. Poor quality or wet filament can cause unwanted stringing and affect print quality.


Stringing can be a frustrating problem in 3D printing, but with the right settings and techniques it can often be avoided. By optimizing print temperature, retraction settings, print speed and using high-quality filament, you can improve the quality of your 3D printing projects and minimize unwanted stringing.