Area tone is achieved in the printing system, by selectively leaving a skinny layer of ink on elements of the printing plate. Laser engravers using a 20W Infrared (IR) diode or 20w+ C02 lasers can engrave clear acrylics. Notice the device's wattage amount may dictate the thickness it could https://keegan2r1gh.blogpayz.com/35459531/5-simple-statements-about-marble-engraving-explained