Briefly on the reason why the advertising engraving machine appears jagged

1. First check whether the model of the engraving machine is suitable. If the depth of the shank is too long, the shape of the knives will be deformed when the engraving machine is working, and the contour will increase, resulting in uneven working surface. And thus appear jagged.

2. Check if the machine has been accidentally moved, resulting in the machine base not being fixed, which causes the knife to shake differently with the movement of the machine, causing the engraved surface to be not smooth and jagged.

3. Look at whether the engraving machine working surface and the machine main shaft are kept vertical. If the two are not vertical, it will be offset when working with the advertising engraving machine, resulting in the surface of the engraving being not smooth and jagged.