Photo crystal engraving at http://www.ucrystal.com: Photo crystal engraving is explained step-by-step in this video clip. First, raw crystals prior to photo crystal engraving are shown. Then a photo crystal engraving machine is used to demonstrate how the photo crystal engraving process is carried out. Examples of 3D laser engraved photo crystal and 2D laser engraved photo crystals are displayed with fine details. The 3D photo crystal engraving is also known as 3D subsurface photo crystal engraving, 3D portrait etching, 3D photo etched crystal processing, and 3D photo inner engraver. The engraved photo crystals are great for gifts, awards, trophies, and plaques. They are suitable for occasions such as birthdays, graduation, wedding, anniversaries, corporate awards, etc.
is this a robot speaking ????
keithmotty1 6 months ago 10