Standard cast acrylic plastic, acrylic plastic sheet laser very well. A commonly engraved award is a cast acrylic shape designed to be lasered from the back side.
For signage and faceplates, etc., special laser-engraving plastics were developed. These incorporate silicate or other materials which conduct excess heat away from the material before it can deform. Outer laminates of this material vaporize easily to expose different colored material below.
Glass do not turn gaseous very easily. As expected, this makes them generally a better candidate for other means of engraving, most notably sandblasting or cutting using diamonds and water. But when a laser hits glass, something else interesting happens: it fractures. Pores in the surface expose natural grains and crystalline "stubs" which, when heated very quickly, can separate a microscopic sized "chip" from the surface because the hot piece is expanding relative to its surroundings. So lasers are indeed used to engrave on glass, and if the power, speed and focus are just right, excellent results can be achieved.
Crystal is a hot material for the gifts actually. And the traditional way of working on the crystal is frosting with low cost and better . But the disadvantages of this traditional way are: It is only for large quantity crystal working and serious pollution.
Here comes the solution for the small quantity working or customized working. And the machines is for this purpose which is with the following working results photo: