Filling method: if the processed workpiece has texture, pay attention to the filling method, return shape, bow shape, etc. it can be tried. According to the experience, the effect of 30 degree oblique line is obvious and even.
Filling density: when the filling density is high, the marking effect is round and full, but compared with the hardware, the processing speed will be slow and the efficiency is low. It is necessary to change the filling density when other parameters remain unchanged, and find a balance point between efficiency and effect.
Material: some materials are not suitable for filling. Filling and marking under the condition of constant power will cause the surface of the workpiece to burst. It can be seen under the 20 times magnifier that the marking effect is fuzzy and there is no clear boundary and line. Double line is required without filling or single line.