Patternmakers, Metal and Plastic — Tasks

Task statements

• 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.
• Assemble pattern sections, using hand tools, bolts, screws, rivets, glue, or welding equipment.
• Repair and rework templates and patterns.
• Clean and finish patterns or templates, using emery cloths, files, scrapers, and power grinders.
• Set up and operate machine tools, such as milling machines, lathes, drill presses, and grinders, to machine castings or patterns.
• Mark identification numbers or symbols onto patterns or templates.
• Lay out and draw or scribe patterns onto material, using compasses, protractors, rulers, scribes, or other instruments.
• Design and create templates, patterns, or coreboxes according to work orders, sample parts, or mockups.
• Construct platforms, fixtures, and jigs for holding and placing patterns.
• Select pattern materials such as wood, resin, and fiberglass.
• Paint or lacquer patterns.
• Program computerized numerical control machine tools.
• Create computer models of patterns or parts, using modeling software.
• Apply plastic-impregnated fabrics or coats of sealing wax or lacquer to patterns used to produce plastic.