Pattern Maker – (7358 TPV) – SF Municipal Transportation Agency - (168101)

Under general supervision, the 7358 Pattern Maker performs skilled work in connection with the fabrication, alteration, maintenance and repair of a variety of patterns for the manufacture of castings. The 7358 Pattern Maker is distinguished from 7344 Carpenter by the former’s responsibility to manufacture and maintain patterns of objects to be cast and special wooden parts, and performs related duties as required.

EXAMPLES OF IMPORTANT AND ESSENTIAL DUTIES:

According to Civil Service Commission Rule 109, the duties specified below are representative of the range of duties assigned to this job code and are not intended to be an inclusive list.

• Designs, lays out and constructs simple or intricate patterns from blueprints, sketches or models; calculates shrinkage of metal and alloys.

• Repairs and corrects broken or damaged pattern equipment to compensate for defects in castings; replaces, repairs, and transports pattern parts, materials, and equipment throughout the city.

• Maintains pattern tools, shop machinery, and equipment.

• Constructs wood and metal pattern tools, machinery, equipment, and castings.

• Constructs, repairs and alters wood and metal patterns and core boxes.

• Makes filing cabinets and office equipment.

• Reviews of specifications for new machinery or equipment, including estimating labor, parts, and related costs.

• Constructs and repairs fire department ladders, tools, special wooden parts for cable cars and antique street cars, plaques, and other equipment according to specifications.

• Inspects and provides quality control over castings delivered by vendors.

Nature of work: Continuous close attention and working within very close tolerances; some physical effort and considerable manual dexterity; exposure to working conditions where minor and major injuries may occur.

IMPORTANT AND ESSENTIAL KNOWLEDGES, SKILLS, AND ABILITIES:

Knowledge of: Pattern making methods and practices, including design, fabrication, and maintenance techniques; safety practices which include workplace safety, safe operation of pattern making tools and equipment, and proper handling of materials; the use of pattern making tools and equipment; pattern making materials which include various types of woods, metals and alloys, plasters and plastics

Ability or Skill to: Design, lay out and make simple or intricate patterns; calculate shrinkages for various types of metals and alloys; work from blueprints, drawings, sketches, samples or oral instructions; communicate verbally in a clear and effective manner; maintain effective working relationships; use pattern making tools, materials and equipment safely.