Job Description Job Description Machines / fabricates prototype and replacement parts for equipment, machines and weapon systems of various types and alloys. Makes repairs to machinery, mechanical equipment and/or optical equipment. Interprets verbal and written instructions and specifications; planning and laying out of work, using a variety of machinist's hand tools and precision measuring instruments. Uses various design software such as Computer Numerical Control (CNC) and Computer-aided Manufacturing (CAM) software to model cutting paths and program tool changers. Programs, sets up and operates manual and CNC machine tools; machines and shapes metal parts to close tolerances; makes standard shop computations relating to dimensions of work, tooling, feeds, and speeds of machining. Demonstrates knowledge of the working properties of the common metals; selects standard materials, parts, and equipment required for this work; and fitting and assembling parts into mechanical equipment a...