More information from O*NET OnLine:

Layout Workers, Metal and Plastic - 51-4192.00

O*NET-SOC Description

Lay out reference points and dimensions on metal or plastic stock or workpieces, such as sheets, plates, tubes, structural shapes, castings, or machine parts, for further processing. Includes shipfitters.

Sample of Reported Job Titles

Development Mechanic
Layout Fabricator
Layout Fitter
Layout Inspector

Layout Man
Layout Mechanic
Layout Technician (Layout Tech)
Layout Worker

SOC Occupation Groups

51-0000	Production Occupations
51-4000	Metal Workers and Plastic Workers
51-4190	Miscellaneous Metal Workers and Plastic Workers
51-4192.00	Layout Workers, Metal and Plastic

Related Occupations

47-2211.00	Sheet Metal Workers
47-2221.00	Structural Iron and Steel Workers
51-2011.00	Aircraft Structure, Surfaces, Rigging, and Systems Assemblers
51-2031.00	Engine and Other Machine Assemblers
51-2041.00	Structural Metal Fabricators and Fitters
51-4061.00	Model Makers, Metal and Plastic
51-4062.00	Patternmakers, Metal and Plastic
51-4111.00	Tool and Die Makers
51-7032.00	Patternmakers, Wood
51-9195.00	Molders, Shapers, and Casters, Except Metal and Plastic

Tasks

Add dimensional details to blueprints or drawings made by other workers.
Apply pigment to layout surfaces, using paint brushes.
Brace parts in position within hulls or ships for riveting or welding.
Compute layout dimensions, and determine and mark reference points on metal stock or workpieces for further processing, such as welding and assembly.
Design and prepare templates of wood, paper, or metal.
Fit and align fabricated parts to be welded or assembled.
Inspect machined parts to verify conformance to specifications.
Install doors, hatches, brackets, and clips.
Lay out and fabricate metal structural parts such as plates, bulkheads, and frames.
Lift and position workpieces in relation to surface plates, manually or with hoists, and using parallel blocks and angle plates.
Locate center lines and verify template positions, using measuring instruments such as gauge blocks, height gauges, and dial indicators.
Mark curves, lines, holes, dimensions, and welding symbols onto workpieces, using scribes, soapstones, punches, and hand drills.
Plan and develop layouts from blueprints and templates, applying knowledge of trigonometry, design, effects of heat, and properties of metals.
Plan locations and sequences of cutting, drilling, bending, rolling, punching, and welding operations, using compasses, protractors, dividers, and rules.

Detailed Work Activities

Align parts or workpieces to ensure proper assembly.
Apply protective or decorative finishes to workpieces or products.
Assemble metal or plastic parts or products.
Assemble metal structures.
Attach decorative or functional accessories to products.
Calculate dimensions of workpieces, products, or equipment.
Construct patterns, templates, or other work aids.
Create diagrams or blueprints for workpieces or products.
Design templates or patterns.
Draw guide lines or markings on materials or workpieces using patterns or other references.
Inspect metal, plastic, or composite products.
Lay out parts to prepare for assembly.
Lift materials or workpieces using cranes or other lifting equipment.
Plan production or operational procedures or sequences.