Etch designs or lettering into metal, glass, or ceramics by laser or hand.
Develops specifications for glass component parts and apparatus, such as test tubes, retorts, and flasks, used in medical and laboratory products, and blows and shapes glass to required dimensions, applying knowledge of glass technology and glass blowing techniques: Develops sketch into blueprint specifications, correlates product design, and determines type of glass to use to fabricate product, utilizing knowledge of factors, such as effects of heat, vacuum, and corrosive chemicals. Heats glass tubing to pliable stage, using gas flame. Blows tubing into specified form, using compressed air or own breath. Shapes, bends, or joins sections of blown glass tubing, using flaring, pressing, and flattening handtools, and stop cork. Inspects and measures product to verify conformance to specifications, using instruments, such as micrometers, calipers, magnifier, and ruler. May anneal product, using annealing oven. May cut glass tubing to specified size and polish tube edges, using hand cutting and polishing wheels. May operate lathe grinder [GLASS GRINDER, LABORATORY APPARATUS 775.382-010] to grind stopcocks and joints to modify glass products. May operate glass blowing lathe [GLASS BLOWING LATHE OPERATOR 772.482-010] to join and shape glass tubing.