The average salary of a(n) Computer Numeric Control Machine Programmer in Washington, District of Columbia is $79,569.
Plans numerical control program to control contour-path machining of parts on automatic machine tools. Computer Numerical Control (CNC) machines include, but are not limited to, machining tools such as lathes, multi-axis spindles, and milling machines, but the functions formerly performed by human operators are performed by a computer-control module. CNC machines cut away material from a solid block of metal, plastic, glass, or other materials to form a finished part. Applies knowledge of the working properties of materials with CNC programming knowledge to design and carry out the operations needed to make machined products that meet precise specifications. Most companies require previous experience as a machinist or machine setter, operator, and tender along with apprenticeship programs, informally on the job, or training in secondary, vocational, or technical college. Requires knowledge of computers and electronics, computer numerical control, basics of programming, and computer-aided manufacturing. Analyzes drawings, sketches, and design data of part to determine dimension and configuration of cuts, selection of cutting tools, and machine speeds and feed rates, according to knowledge of machine shop processes, part specifications, and machine capabilities. Determines reference points and direction of machine cutting paths. Computes angular and linear dimensions, radii, and curvatures, and outlines sequence of operations required to machine part. Prepares geometric layout on graph paper or using computer-assisted drafting software to show location of reference points and direction of cutting paths, using drafting instruments or computer. Writes instruction sheets and cutter lists to guide setup and operation of machine. Writes program of machine instructions to regulate movement of machine along cutting path. Compares computer printout with original program sheet to assure accuracy of machine instructions. Revises program to eliminate instruction errors or omissions. Observes operation of machine on trial run to prove programmed instructions. Less
Plans numerical control program to control contour-path machining of parts on automatic machine tools. Computer Numerical Control (CNC) machines include, but are not limited to, machining tools such as lathes, multi-axis spindles, and milling machines, but the functions formerly performed... More