How to calibrate the accuracy of woodworking engraving machine?

Computerized engraving machines have two categories: laser engraving and mechanical engraving, both of which are divided into high power and low power. Because the engraving machine has a very wide range of applications, it is necessary to understand the most appropriate application of various engraving machines: 

1. Badges: low-power laser engraving machine (engraving machine), high-power or low-power computerized engraving machine

2. Architectural models: high and low-power computerized engraving machine

3. Metal (molds, chapters, etc.) processing: high and low-power computerized engraving machine (high-power due to more cutting per time and save time)

4. Crystal word production: high-power laser engraving machine (more than 50W), high-power mechanical engraving machine

5. Wood, plexiglass, artificial stone and other signage production: high-power mechanical engraving machine; 6. Display, exhibition modeling: high-power, large-format mechanical engraving machine.