A professional who sets up and operates machines to construct complete working models of new or redesigned household electrical appliances, such as fans, heaters, and hair driers. Respnsibilities include:

• Lays out and fabricates metal and plastic parts, using handtools and machine tools.
• Devises and constructs own tools, dies, molds, jigs, and fixtures, or modifies existing tools and equipment.
• Assembles mechanical and electrical parts, and installs wiring circuits.