CNC Operator

Summary Sets up and operates Computer Numerical Control machines or machining centers to perform various functions, such as cutting, drilling, milling, reaming, boring, tapping of metallic, and non-metallic work pieces.

ESSENTIAL DUTIES AND RESPONSIBILITIES include the following. Other duties may be assigned.

• Reads and interprets blueprints, planning sheets, sketches, and related technical data to determine tooling requirements, setup procedures, control setting, and machining methods and sequences.
• Mounts, aligns, and secures tooling, attachments, and work piece on the machine.
• Selects and installs cutting tools in machine spindle.
• Loads control media in machine controller or enters commands to retrieve preprogrammed instructions from database.
• Calculates and sets machine controls to position spindle in relationship to work piece
• Regulates factors such as cutting depth, speeds, feeds, and coolant flow.
• Start machine and monitors displays and machine operation to detect malfunction.
• Stops machine to change cutting tools and setup according to required machining sequence or to measure parts for conformance to blueprint specification, using precision measuring instruments.
• Enters commands or manually adjusts machine controls to correct malfunctions or outof-tolerance machining.
• Operate machines manually to perform non-automated functions.
• Edits preprogrammed material to tie several programs together and run automatic to control speeds and feeds.
• Discuss control media errors with supervisor or programming personnel to resolve problems.
• Occasionally inspects and measures parts, fixtures, and details for follow-up machining.
• Keeps work area and machine clean and organized.
• May perform manual maintenance.
• Operates forklift (requires license).

OTHER DUTIES: This job description should not be construed to imply that these requirements are the exclusive standards or duties of the position. Incumbents will be required to follow any other instructions, and perform any other related duties as may be required by their supervisor.

WORK ENVIRONMENT The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

While performing the duties of this job, the employee is regularly exposed to moving mechanical parts, moving equipment, mold components and operating machinery; fumes and airborne particles (dust and mist), with exposure to oils, cutting fluids, cleaning fluids, solvents, and rust preventatives.

The noise level in the work environment is usually loud.