There are several issues with the printing quality, including Stringing, poor print quality, and Z-seam leakage.
Stringing refers to the phenomenon of uneven and rough texture on the surface of 3D printed parts, resembling "strings". This may be caused by printing speed being too fast, improper temperature, or unstable extrusion speed of the extruder.
Solution:
1) Lower the printing speed, especially for complex geometries or high-precision parts.
2)Ensure that the printing temperature and material type match the requirements of the part and material. It is recommended to set the temperature based on the recommendations of the material supplier.
3)Check if the extrusion speed of the extruder is stable, and avoid extruding too fast or too slow.
4)Increase the Retraction Speed or Travel Speed, especially for large flat parts or models with long travel distances. (After slicing the model, click on Preview -> Check "Travel" in the Show column)