Because of the principle of the laser, a strong pulse is generated at the first moment of each laser output, which hits the surface of the material and sometimes forms a conspicuous focus, generally called the first pulse. LZ, the above parameters you mentioned are the first pulse suppression parameters specially set to eliminate this important point:

First pulse delay and first pulse delay time, these two are almost the same, both delay the normal operation of the laser. Light time. If this parameter is too small, it will not have the effect of first pulse suppression, and it is easy to form a focus; if this parameter is too large, it will cause the normal light to come out too late, causing disconnection.

The first pulse size and the first pulse time should refer to the release time of the first pulse of the laser, that is, the energy size. If it's too big, it'll focus, but if it's small, it'll be disconnected.

Anyway, these two parameters need to be adjusted according to the actual situation. You can draw a square, choose a very sparse filling density (for example, the line spacing is 0.5 mm), and then type it out to observe the intersection between the starting point of the filling line and the border. Observe whether the starting point is to the left or right, and whether it coincides with the border or is far away from the border. . Then modify the above parameters, hit again and observe again until the starting point of the line is adjusted to be even.