, or chipping: builds bed of timbers on flatcar or bed of machine. ) signals overhead crane operator to lower stone and guides stone onto timber bed, aligning stone with arm of polishing machine, surfacing machine, or saw. ) determines when stone is level, using straightedge and spirit level. ) signals...
measurements, and other test results in logbook and on labels, and attaches labels to ingots. ) may operate saws to cut off ends of crystal or to cut sample wafers. ) may tend furnace that heat-treats ingots to alter resistivity to meet specifications. ) may determine crystal orientation, using x-ray machine...