Etch designs or lettering into metal, glass, or ceramics by laser or hand.
Assembles frames, bases, and other component parts of industrial machines and equipment in jigs preparatory to welding, using electric crane and handtools: Verifies shape of metal parts according to blueprint specifications, using templates. Examines metal parts to detect defects, such as rough spots and burrs, and removes defects, using hand file and portable powered grinder. Lifts and fits parts in jig according to blueprint, using electric crane and handtools. Clamps parts in position in jig, using wrench. Tack-welds parts together [WELDER, TACK 810.684-010] in preparation for final welding. Lifts and moves assembly from jig to welding area using electric crane.