What Do Numerical Control (CNC) Operators, Programmers & Programmer/Operators Do?

Many machine shops, large or small, have upgraded with CNC machinery, including motor vehicle parts manufacturers, machinery and equipment manufacturers, aircraft and parts manufacturers, and primary steel producers. CNC machinery is the type of equipment used in a variety of manufacturing environments where it is necessary to produce complicated identical parts. This type of equipment is also used in the manufacturing of tooling such as dies and moulds that are used to mass-produce metal and plastic parts. Have a look at what each one does:

CNC Operator

A CNC machine operator is required to have minimal machining experience. They require:

  • a good understanding of the machine’s capabilities
  • the ability to locate and load the necessary tools
  • the ability to interpret engineering drawings
  • ability to identify NC code
  • have proven mechanical aptitude
  • the ability to use measuring tools and work with one’s hands.

Employment is usually full-time, may include shift work and benefits, and will likely be with a manufacturing company that uses CNC equipment to produce machined parts.

CNC Programmer

CNC programmers are required to have an extensive knowledge of machining.

They must possess:

  • good organizational and planning skills
  • good blueprint reading
  • an in-depth knowledge of NC codes
  • the ability to produce efficient and cost effective NC programs
  • an understanding of fixture design
  • strong math skills and good communication and problem-solving skills.

Employment is usually full-time, perhaps including shift work, and the working environment may be in an office or on the shop floor, using a computer and computer aided software to create and troubleshoot NC programs used in the production of piece parts.

CNC Programmer/Operator

People who program and operate CNC equipment are usually skilled trade people such as Tool & Die Makers, Mould Makers and General Machinists. They use this equipment to assist them to build high quality production tools. In addition to CNC programming skills, they would have served a three to four year apprenticeship and have extensive machining and planning skills.

The work performed by a Computer Numeric Control Machine Setup Operator is similar to a Machinist, however the milling machines and lathes they use have been programmed by computer. The CNC operator must take training to learn how to edit the CNC program used to produce various machined parts. Many machine shops, large or small, have upgraded with CNC machinery, including motor vehicle parts manufacturers, machinery and equipment manufacturers, aircraft and parts manufacturers, and primary steel producers. Most workers in this occupation work full-time, for good wages including benefits.

For more information on entry requirements for an apprenticeship in this or other related areas (such as Tool & Die Maker etc.), see the descriptions in the apprenticesearch.com database, or visit the Ministry of Education and Training site at www.edu.gov.on.ca.