Computer Numerically Controlled Tool Operator

Operate computer-controlled tools, machines, or robots to machine or process parts, tools, or other work pieces made of metal, plastic, wood, stone, or other materials. May also set up and maintain equipment.

O*NET reports this occupation under titles such as: CNC Gear Operator (Computer Numerical Control Gear Operator); CNC Lathe Operator (Computer Numerical Control Lathe Operator); CNC Machine Operator (Computer Numerical Control Machine Operator); CNC Machinist (Computer Numerical Control Machinist); CNC Mill Operator (Computer Numerical Control Mill Operator); CNC Operator (Computer Numerical Control Operator); CNC Set Up Operator (Computer Numerical Control Set Up Operator); Machine Operator; Machine Set Up Operator

Tasks

• Measure dimensions of finished workpieces to ensure conformance to specifications, using precision measuring instruments, templates, and fixtures.
• Set up and operate computer-controlled machines or robots to perform one or more machine functions on metal or plastic workpieces.
• Mount, install, align, and secure tools, attachments, fixtures, and workpieces on machines, using hand tools and precision measuring instruments.
• Review program specifications or blueprints to determine and set machine operations and sequencing, finished workpiece dimensions, or numerical control sequences.
• Stop machines to remove finished workpieces or to change tooling, setup, or workpiece placement, according to required machining sequences.
• Listen to machines during operation to detect sounds such as those made by dull cutting tools or excessive vibration, and adjust machines to compensate for problems.
• Implement changes to machine programs, and enter new specifications, using computers.
• Calculate machine speed and feed ratios and the size and position of cuts.
• Transfer commands from servers to computer numerical control (CNC) modules, using computer network links.
• Remove and replace dull cutting tools.
• Check to ensure that workpieces are properly lubricated and cooled during machine operation.
• Adjust machine feed and speed, change cutting tools, or adjust machine controls when automatic programming is faulty or if machines malfunction.
• Monitor machine operation and control panel displays, and compare readings to specifications to detect malfunctions.
• Maintain machines and remove and replace broken or worn machine tools, using hand tools.
• Insert control instructions into machine control units to start operation.

Knowledge

• Mathematics
• Production and Processing
• Mechanical
• Engineering and Technology
• English Language
• Design
• Education and Training
• Administration and Management

Skills

• Critical Thinking
• Monitoring
• Active Listening
• Speaking

Abilities

• Arm-Hand Steadiness
• Near Vision
• Problem Sensitivity
• Information Ordering
• Control Precision
• Reaction Time
• Hearing Sensitivity
• Oral Comprehension
• Perceptual Speed
• Visualization
• Manual Dexterity
• Finger Dexterity
• Auditory Attention
• Deductive Reasoning
• Category Flexibility
• Flexibility of Closure
• Selective Attention
• Multilimb Coordination
• Rate Control
• Trunk Strength
• Written Comprehension
• Oral Expression
• Inductive Reasoning
• Number Facility
• Speed of Closure
• Visual Color Discrimination
• Depth Perception
• Speech Recognition
• Speech Clarity