What does a Computer Numerically Controlled Machine Tool Programmer, Metal and Plastic do?
Develop programs to control machining or processing of metal or plastic parts by automatic machine tools, equipment, or systems.
- Determine the sequence of machine operations, and select the proper cutting tools needed to machine workpieces into the desired shapes.
- Revise programs or tapes to eliminate errors, and retest programs to check that problems have been solved.
- Analyze job orders, drawings, blueprints, specifications, printed circuit board pattern films, and design data to calculate dimensions, tool selection, machine speeds, and feed rates.
- Determine reference points, machine cutting paths, or hole locations, and compute angular and linear dimensions, radii, and curvatures.
- Observe machines on trial runs or conduct computer simulations to ensure that programs and machinery will function properly and produce items that meet specifications.
- Compare encoded tapes or computer printouts with original part specifications and blueprints to verify accuracy of instructions.
- Enter coordinates of hole locations into program memories by depressing pedals or buttons of programmers.
- Write programs in the language of a machine's controller and store programs on media such as punch tapes, magnetic tapes, or disks.
- Modify existing programs to enhance efficiency.
- Enter computer commands to store or retrieve parts patterns, graphic displays, or programs that transfer data to other media.
- Prepare geometric layouts from graphic displays, using computer-assisted drafting software or drafting instruments and graph paper.
- Write instruction sheets and cutter lists for a machine's controller to guide setup and encode numerical control tapes.
- Sort shop orders into groups to maximize materials utilization and minimize machine setup time.
- Draw machine tool paths on pattern film, using colored markers and following guidelines for tool speed and efficiency.
- Align and secure pattern film on reference tables of optical programmers, and observe enlarger scope views of printed circuit boards.