What does a Patternmaker, Metal and Plastic do?

Lay out, machine, fit, and assemble castings and parts to metal or plastic foundry patterns, core boxes, or match plates.

Jobs Roles

  • Set up and operate machine tools, such as milling machines, lathes, drill presses, and grinders, to machine castings or patterns.
  • Read and interpret blueprints or drawings of parts to be cast or patterns to be made, compute dimensions, and plan operational sequences.
  • Verify conformance of patterns or template dimensions to specifications, using measuring instruments such as calipers, scales, and micrometers.
  • Program computerized numerical control machine tools.
  • Design and create templates, patterns, or coreboxes according to work orders, sample parts, or mockups.
  • Assemble pattern sections, using hand tools, bolts, screws, rivets, glue, or welding equipment.
  • Repair and rework templates and patterns.
  • Lay out and draw or scribe patterns onto material, using compasses, protractors, rulers, scribes, or other instruments.
  • Clean and finish patterns or templates, using emery cloths, files, scrapers, and power grinders.
  • Construct platforms, fixtures, and jigs for holding and placing patterns.
  • Mark identification numbers or symbols onto patterns or templates.
  • Select pattern materials such as wood, resin, and fiberglass.
  • Apply plastic-impregnated fabrics or coats of sealing wax or lacquer to patterns used to produce plastic.
  • Paint or lacquer patterns.
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