CNC Operator

Anonymous

North Carolina (SAA)

Documents

Individual state requirements may vary. Please contact your local apprenticeship office to ensure this version is suitable to your state’s requirements.

Work Process Schedule

Work Process Content

On the Job Training

Anonymous

Skills

Program equipment to perform production tasks.

Write programs in the language of a machine's controller and store programs on media, such as punch tapes, magnetic tapes, or disks.
Revise programs or tapes to eliminate errors, and retest programs to check that problems have been solved.
Write instruction sheets and cutter lists for a machine's controller to guide setup and encode numerical control tapes.
Modify existing programs to enhance efficiency.

Determine production equipment settings.

Determine the sequence of machine operations, and select the proper cutting tools needed to machine workpieces into the desired shapes.
Determine reference points, machine cutting paths, or hole locations, and compute angular and linear dimensions, radii, and curvatures.

Select production equipment according to product specifications.

Determine the sequence of machine operations, and select the proper cutting tools needed to machine workpieces into the desired shapes.

Study blueprints or other instructions to determine equipment setup requirements.

Analyze job orders, drawings, blueprints, specifications, printed circuit board pattern films, and design data to calculate dimensions, tool selection, machine speeds, and feed rates.

Conduct test runs of production equipment.

Observe machines on trial runs or conduct computer simulations to ensure that programs and machinery will function properly and produce items that meet specifications.

Create diagrams or blueprints for workpieces or products.

Prepare geometric layouts from graphic displays, using computer-assisted drafting software or drafting instruments and graph paper.

Enter commands, instructions, or specifications into equipment.

Enter computer commands to store or retrieve parts patterns, graphic displays, or programs that transfer data to other media.
Enter coordinates of hole locations into program memories by depressing pedals or buttons of programmers.

Calculate dimensions of workpieces, products, or equipment.

Determine reference points, machine cutting paths, or hole locations, and compute angular and linear dimensions, radii, and curvatures.

Draw guide lines or markings on materials or workpieces using patterns or other references.

Draw machine tool paths on pattern film according to guidelines for tool speed and efficiency, using colored markers.

Plan production or operational procedures or sequences.

Sort shop orders into groups to maximize materials utilization and minimize machine setup time.

Verify information or specifications.

Compare encoded tapes or computer printouts with original part specifications and blueprints to verify accuracy of instructions.

Perform basic equipment maintenance.

Perform preventative maintenance or minor repairs on machines.

Mount materials or workpieces onto production equipment.

Align and secure pattern film on reference tables of optical programmers, and observe enlarger scope views of printed circuit boards.

Position patterns on equipment, materials, or workpieces.

Align and secure pattern film on reference tables of optical programmers, and observe enlarger scope views of printed circuit boards.

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