The process itself is the same as in laser cutting the difference is the selected power setting. In vector engraving, the axles move simultaneously, and more slowly than in raster engraving. If you zoom in to a raster image, you will begin to see individual pixels, which can make the image look grainy or blurry.
Vector by vector is traced by the laser and then engraved. The main difference between vector and raster images is that rasters are pixel-based, while vectors are created using mathematical formulas for lines, points, and curves. When the file is imported from the graphics program, the outline is identified as vector engraving. Vector engraving and cutting: Vector engraving is often referred to as “scoring.” The file to be printed is a graphic file consisting of vectors (lines and curves of a geometry), marked as hairlines in the graphics. In raster engraving, the ppi parameter (pulses per inch) is important because it controls the density of the laser points. The speed is high on the x axle (the axle to which the laser head is attached) and lower by comparison on the y axle. This is a “bi-directional” process in which engraving is done in alternating fashion in both directions.ĭuring the line-by-line raster engraving process, the speeds of the two axles are very different. The image is engraved by the laser machine line by line, point by point, similar to the way in which an inkjet printer applies ink, but instead of ink being applied, material is removed pixel by pixel by the laser. How does this work with a laser? A raster file is a bitmap, which means it is made up of pixels. They can contain millions of pixels and incredibly high levels of detail.
Raster and vector graphics have distinct ways of rendering, and most of the time one will be a better match for a design project, rather than the other. This process is the same type of process used by inkjet printers, where a file is printed line by line. Raster files are generally larger than vector files. Raster graphics often come in at a premium performance cost via larger file sizes, resolution-dependency, and other downfalls. Raster engraving: Raster engraving is the standard process for engraving. The main differences between modes required to laser process each type involve the movement of the axles and in the parameters used. Raster and vector are different graphic file types which require different modes of laser processing. The main difference between vector and raster graphics is that raster graphics are composed of pixels, while vector graphics are composed of paths or lines.
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