During the process of laser engraving, the laser processes a shape, graphic or picture (e.g. a JPG or PNG) on a wide range of materials. The laser moves horizontally along the individual lines of the engraving, and the material being engraved is removed point by point, line by line. This processing method is called grid engraving.
Among other things, surfaces or shapes can be engraved using this method, including photos, pictures, logos, inlays, fine to thick lettering, and stamps, to name a few.
More about the precise process of raster engraving