With the continuous development of 3D printing technology, PETG filament, as a commonly used printing material, is widely used because of its good mechanical properties, weather resistance and transparency. However, when printing with PETG filaments, surface treatment issues often become the focus of user concern.

The importance of PETG filament surface treatment

Surface treatment is an indispensable part of 3D printing, which directly affects the appearance and performance of the final printed part. Good surface treatment can make the surface of the printed part more smooth and delicate, improve its mechanical strength and weather resistance. In addition, the surface treatment can also improve the visual effect of the print, making it more beautiful.

PETG filament surface treatment common problems and solutions

Streaks appear on the surface of the print
Streaking on the surface of the print is one of the common problems in PETG filament printing. This is usually caused by the printing speed or improper setting of the printing temperature. The way to solve this problem is to properly reduce the printing speed and adjust the printing temperature. Under normal circumstances, the printing temperature of PETG filament should be controlled between 230 ° C and 260 ° C.

The print has a rough surface
The rough surface of the print may be due to impurities contained in the printing material itself or the printing platform is not cleaned up. To solve this problem, you can ensure that the printing platform is clean before printing, and use high-quality PETG filament. In addition, the appropriate adjustment of the printing temperature and printing speed can also improve the roughness of the printed surface.

Bubbles appear on the surface of the print
The appearance of bubbles on the surface of the print may be caused by insufficient drying of the material or high printing temperature. In order to avoid this problem, the PETG filament can be adequately dried before printing and ensure that the printing temperature is within a reasonable range. In addition, regular cleaning of the print head can also reduce the production of bubbles.

Cracks appear on the surface of the print
Cracks on the surface of the print may be caused by the printing temperature is too low or the cooling speed is too fast. In order to solve this problem, the printing temperature can be appropriately increased and the cooling speed can be adjusted. In addition, the use of suitable printing platforms and support materials can also reduce the generation of cracks.

Color difference appears on the surface of the print
The color difference on the surface of the print may be caused by different material batches or improper printing temperature Settings. In order to avoid this problem, you can select the same batch of PETG filament for printing, and ensure that the printing temperature is within a reasonable range. In addition, regular cleaning of the print head can also reduce the production of color aberrations.

PETG filament is a commonly used 3D printing material, and its surface treatment directly affects the quality of the final printed part. By reasonably setting the printing temperature, printing speed and doing a good job of drying and cleaning materials, the surface treatment problems encountered in the printing process of PETG filament can be effectively solved. In addition, choosing a high-quality PETG filament and the right printing platform is also the key to improving the surface quality of the printed part. It is hoped that the discussion in this paper can help users better understand and solve the surface treatment problems of PETG filament.