Operate computer-controlled machines or robots to perform one or more machine functions on metal or plastic work pieces.
<ul><li>Measure dimensions of finished workpieces to ensure conformance to specifications, using precision measuring instruments, templates, and fixtures.</li><li>Mount, install, align, and secure tools, attachments, fixtures, and workpieces on machines, using hand tools and precision measuring instruments.</li><li>Stop machines to remove finished workpieces or to change tooling, setup, or workpiece placement, according to required machining sequences.</li><li>Transfer commands from servers to computer numerical control (CNC) modules, using computer network links.</li><li>Insert control instructions into machine control units to start operation.</li><li>Check to ensure that workpieces are properly lubricated and cooled during machine operation.</li><li>Set up and operate computer-controlled machines or robots to perform one or more machine functions on metal or plastic workpieces.</li><li>Review program specifications or blueprints to determine and set machine operations and sequencing, finished workpiece dimensions, or numerical control sequences.</li><li>Remove and replace dull cutting tools.</li><li>Listen to machines during operation to detect sounds such as those made by dull cutting tools or excessive vibration, and adjust machines to compensate for problems.</li><li>Monitor machine operation and control panel displays, and compare readings to specifications to detect malfunctions.</li><li>Enter commands or load control media, such as tapes, cards, or disks, into machine controllers to retrieve programmed instructions.</li><li>Modify cutting programs to account for problems encountered during operation, and save modified programs.</li><li>Adjust machine feed and speed, change cutting tools, or adjust machine controls when automatic programming is faulty or if machines malfunction.</li><li>Lift workpieces to machines manually or with hoists or cranes.</li><li>Calculate machine speed and feed ratios and the size and position of cuts.</li><li>Stack or load finished items, or place items on conveyor systems.</li><li>Control coolant systems.</li><li>Maintain machines and remove and replace broken or worn machine tools, using hand tools.</li><li>Confer with supervisors or programmers to resolve machine malfunctions or production errors or to obtain approval to continue production.</li><li>Implement changes to machine programs, and enter new specifications, using computers.</li><li>Clean machines, tooling, or parts, using solvents or solutions and rags.</li><li>Set up future jobs while machines are operating.</li></ul>