Laser light can be highly collimated by means of a focus lens. An extremely high energy density is generated in the focus of the laser beam, which can be used for melting or evaporating the material. In addition, using suitable optics (mirrors), laser light can be directed and reflected, and this completely without any losses even over large distances. Positioning systems (laser plotters) or galvanometer scanners are used as movement systems. The result is a universal and wear-free tool as the laser beam will never become blunt.