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Computer Numerically Controlled Tool Operators

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.

What you’d do

  • 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.

Skills that matter

  • Operation and Control
  • Operations Monitoring
  • Critical Thinking
  • Monitoring
  • Quality Control Analysis
  • Active Listening

How to get there

Little to some preparation: usually a high school diploma or GED, though some jobs do not need one

Also called

  • CNC Machine Operator (Computer Numerical Control Machine Operator)
  • CNC Machinist (Computer Numerical Control Machinist)
  • CNC Operator (Computer Numerical Control Operator)
  • Machine Operator
  • CNC Gear Operator (Computer Numerical Control Gear Operator)
  • CNC Lathe Operator (Computer Numerical Control Lathe Operator)
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