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A laser glass sculpture of a caffeine molecule. A bubblegram (also known as laser crystal, Subsurface Laser Engraving, 3D crystal engraving or vitrography) is a solid block of glass or transparent plastic that has been exposed to laser beams to generate three-dimensional designs inside.
A cased glass blank is an object made with several layers of colors. When it is decorated (often by cutting or engraving) the lower layers of one or more different colors are revealed. [2] A popular example of pieces made using cased glass blanks are cameo glass objects. Figured blanks are made when hot glass is blown into a mold.
The "5-dimensional" descriptor is because, unlike marking only on the surface of a 2D piece of paper or magnetic tape, this method of encoding uses two optical dimensions and three spatial co-ordinates to write throughout the material, which suggested the name '5D data crystal'. No exotic higher dimensional properties are involved. The size ...
Laser engraving metal plates are manufactured with a finely polished metal, coated with an enamel paint made to be "burned off". At levels of 10 to 30 watts, excellent engravings are made as the enamel is removed quite cleanly. Much laser engraving is sold as exposed brass or silver-coated steel lettering on a black or dark-enamelled background.
These days, tailored blanks are used to make items such as door panels which are thick near the hinges and thin near the lock to withstand different types of loads or corrosion attacks. They are lighter and often cheaper than conventional sheets. Tailored Blanks are typically made from steel. Aluminium and dissimilar material tailored blanks ...
The CO 2 laser is suited for cutting, boring, and engraving. The neodymium (Nd) and neodymium yttrium-aluminium-garnet lasers are identical in style and differ only in the application. Nd is used for boring and where high energy but low repetition are required. The Nd:YAG laser is used where very high power is needed and for boring and engraving.
The engraver might be employed by the glassmaker, or completely independent, buying glass blanks or finished glasses and other pieces to work on. This seems to go as far back as Roman times. [6] Modern laser engraving on glass is another technique, generally only used for decorative purposes mechanically, for example to reproduce images on mirrors.
Gravure cylinders are usually made of steel and plated with copper, though other materials, e.g. ceramics can also be used. The desired pattern is achieved by engraving with a laser or a diamond tool, or by chemical etching. If the cylinder is chemically etched, a resist (in the form of a negative image) is transferred to the cylinder before ...
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