Plans the job, determines methods and sequences of operations, makes layouts, fabricates, assembles, proves to exacting tolerances, and reworks as required all types and sizes of complex multiple-operating forming blocks and their accessories, of large and irregular shapes, including stretch-wrap forming blocks, double-operation router blocks and router jigs, and blocks used for forming parts under extreme high temperatures, where spring-back charts are not available, and it is necessary to exercise a complete knowledge of metal forming methods and of the physical characteristics of metals. Plans, determines, and prepares projection layouts for developing flat patterns of intersecting square, rectangular, conical and tubular-shaped parts such as metallic tooling, production templates and sheet metal assembly mockups, utilizing conventional and/or computer graphic systems, where it is required to exercise a complete knowledge of template making theory and practice, of sheet metal layout, and of tooling and aircraft fabrication methods and procedures.