From the principle of processing, it is a combination of drilling and milling. Multiple data input modes of the engraving machine are more flexible. There are two types of computer engraving machines: laser engraving and mechanical engraving. Both types have high power and low power. Because the application range of engraving machines is very wide, it is necessary to understand the most suitable application range of various engraving machines. Low-power ones are only suitable for two-color panels, building models, small signs, three-dimensional crafts, etc. Because the power is too small, it greatly affects the scope of its application. High power engraving machine can do things with low power engraving machine. Most suitable for large-scale cutting, embossing and carving.