Carved from processing in principle is a combination of drilling and milling processing, carving machine a variety of data input mode according to the need. Computer engraving machine is laser engraving and mechanical engraving, these two types have high power and small power. Because of engraving machine has a very wide range of application scope, so it is necessary to understand the most appropriate range of application of various kinds of engraving machine. Small power only suitable for double color plate, building model, small signs, three-dimensional crafts, etc. Because the power is too small and greatly influence the scope of its application. High power small power engraving machine engraving machine can do. The most suitable for large cutting, embossing, engraving.