Laser engraving is a process that uses a laser beam to create permanent markings on a variety of materials. The laser beam vaporizes the material at the surface, leaving behind a darkened or raised area.

There are three main types of laser engraving machines: CO2 lasers, fiber lasers, and UV. CO2 lasers are the most common type and are used for engraving a wide variety of materials, including wood, acrylic, leather, and plastic. Fiber lasers are better suited for engraving metal and other hard materials. A UV laser is great for working with glass. It doesn't use heat so there is less chance for breakage and it also doesn't produce sharp glass shards on the engrave.

A wide variety of materials can be laser engraved, including wood, acrylic, leather, plastic, metal, stone, and glass. However, the specific materials that can be engraved will depend on the type of laser machine being used. See above question.