- Shape molds to specified contours, using sand, and trowels and related tools.
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- Position cores into lower sections of molds, and reassemble molds for pouring.
- Form and assemble slab cores around patterns, and position wire in mold sections to reinforce molds, using hand tools and glue.
- Tend machines that bond cope and drag together to form completed shell molds.
- Rotate sweep boards around spindles to make symmetrical molds for convex impressions.
- Clean and smooth molds, cores, and core boxes, and repair surface imperfections.
- Sift and pack sand into mold sections, core boxes, and pattern contours, using hand or pneumatic ramming tools.
- Position patterns inside mold sections, and clamp sections together.
- Sprinkle or spray parting agents onto patterns and mold sections to facilitate removal of patterns from molds.
- Move and position workpieces, such as mold sections, patterns, and bottom boards, using cranes, or signal others to move workpieces.
- Lift upper mold sections from lower sections, and remove molded patterns.
- Cut spouts, runner holes, and sprue holes into molds.
- Pour molten metal into molds, manually or with crane ladles.
- Operate ovens or furnaces to bake cores or to melt, skim, and flux metal.
- Position cores into lower sections of molds, and reassemble molds for pouring.
- Form and assemble slab cores around patterns, and position wire in mold sections to reinforce molds, using hand tools and glue.
- Tend machines that bond cope and drag together to form completed shell molds.
- Rotate sweep boards around spindles to make symmetrical molds for convex impressions.
- Assemble, insert, and adjust wires, tubes, cores, fittings, rods, or patterns into molds, using hand tools and depth gauges.
- Operate molding machines that compact sand in flasks to form molds.
- Construct or form molds for use in casting clay or plaster objects, using plaster, fiberglass, rubber, casting machines, patterns, or flasks.
- Align and assemble parts to produce completed products, using gauges and hand tools.
- Read work orders or examine parts to determine parts or sections of products to be produced.
- Trim or remove excess material, using scrapers, knives, or band saws.
- Brush or spray mold surfaces with parting agents or insert paper into molds to ensure smoothness and prevent sticking or seepage.
- Engrave or stamp identifying symbols, letters, or numbers on products.
- Clean, finish, and lubricate molds and mold parts.
- Separate models or patterns from molds and examine products for accuracy.
- Set the proper operating temperature for each casting.
- Load or stack filled molds in ovens, dryers, or curing boxes, or on storage racks or carts.
- Operate and adjust controls of heating equipment to melt material or to cure, dry, or bake filled molds.
- Select sizes and types of molds according to instructions.
- Patch broken edges or fractures, using clay or plaster.
- Withdraw cores or other loose mold members after castings solidify.
- Repair mold defects, such as cracks or broken edges, using patterns, mold boxes, or hand tools.
- Measure and cut products to specified dimensions, using measuring and cutting instruments.
- Smooth surfaces of molds, using scraping tools or sandpaper.
- Measure ingredients and mix molding, casting material, or sealing compounds to prescribed consistencies, according to formulas.
- Remove excess materials and level and smooth wet mold mixtures.
- Place forms around models and separately immerse each half portion of a model in plaster, wax, or other mold-making materials.
- Verify dimensions of products, using measuring instruments, such as calipers, vernier gauges, or protractors.
- Bore holes or cut grates, risers, or pouring spouts in molds, using power tools.
- Locate and scribe parting lines on patterns, using measuring instruments, such as calipers, squares, or depth gauges.
- Tap or tilt molds to ensure uniform distribution of materials.
- Pour, pack, spread, or press plaster, concrete, or other materials into or around models or molds.
- Assemble, insert, and adjust wires, tubes, cores, fittings, rods, or patterns into molds, using hand tools and depth gauges.
- Operate molding machines that compact sand in flasks to form molds.
- Construct or form molds for use in casting clay or plaster objects, using plaster, fiberglass, rubber, casting machines, patterns, or flasks.
- Align and assemble parts to produce completed products, using gauges and hand tools.
- Construct preliminary models of wax, metal, clay, or plaster, and form sample castings in molds.
- Design and fabricate molds, models, and machine accessories, and modify hand tools used to cast metal and jewelry pieces.
- Position stones and metal pieces, and set, mount, and secure items in place, using setting and hand tools.
- Smooth soldered joints and rough spots, using hand files and emery paper, and polish smoothed areas with polishing wheels or buffing wire.
- Create jewelry from materials such as gold, silver, platinum, and precious or semiprecious stones.
- Make repairs, such as enlarging or reducing ring sizes, soldering pieces of jewelry together, and replacing broken clasps and mountings.
- Clean and polish metal items and jewelry pieces, using jewelers' tools, polishing wheels, and chemical baths.
- Cut and file pieces of jewelry such as rings, brooches, bracelets, and lockets.
- Select and acquire metals and gems for designs.
- Compute costs of labor and materials to determine production costs of products and articles.
- Examine assembled or finished products to ensure conformance to specifications, using magnifying glasses or precision measuring instruments.
- Pierce and cut open designs in ornamentation, using hand drills and scroll saws.
- Pour molten metal alloys or other materials into molds to cast models of jewelry.
- Shape and straighten damaged or twisted articles by hand or using pliers.
- Soften metal to be used in designs by heating it with a gas torch and shape it, using hammers and dies.
- Determine appraised values of diamonds and other gemstones based on price guides, market fluctuations, and stone grades and rarity.
- Grade stones based on their color, perfection, and quality of cut.
- Plate articles such as jewelry pieces and watch dials, using silver, gold, nickel, or other metals.
- Write or modify design specifications such as the metal contents and weights of items.
- Create new jewelry designs and modify existing designs, using computers as necessary.
- Buy and sell jewelry, or serve as agents between buyers and sellers.
- Record the weights and processing times of finished pieces.
- Lay out designs on metal stock, and cut along markings to fabricate pieces used to cast metal molds.
- Mark, engrave, or emboss designs on metal pieces such as castings, wire, or jewelry, following specifications.
- Cut designs in molds or other materials to be used as models in the fabrication of metal and jewelry products.
- Research and analyze reference materials, and consult with interested parties to develop new products or modify existing designs.
- Anneal precious metal objects such as coffeepots, tea sets, and trays in gas ovens for prescribed times to soften metal for reworking.
- Weigh, mix, and melt metal alloys or materials needed for jewelry models.
- Rotate molds to distribute alloys and to prevent formation of air pockets.
- Rout out locations where parts are to be joined to items, using routing machines.
- Construct preliminary models of wax, metal, clay, or plaster, and form sample castings in molds.
- Design and fabricate molds, models, and machine accessories, and modify hand tools used to cast metal and jewelry pieces.
- Construct wooden models, patterns, templates, full scale mock-ups, and molds for parts of products and production tools.
- Fit, fasten, and assemble wood parts together to form patterns, models, or sections, using glue, nails, dowels, bolts, screws, and other fasteners.
- Fabricate work aids such as scrapers or templates.
- Verify dimensions and contours of models during hand-forming processes, using templates and measuring devices.
- Read blueprints, drawings, or written specifications, and consult with designers to determine sizes and shapes of patterns and required machine setups.
- Set up, operate, and adjust a variety of woodworking machines such as bandsaws and planers to cut and shape sections, parts, and patterns, according to specifications.
- Trim, smooth, and shape surfaces, and plane, shave, file, scrape, and sand models to attain specified shapes, using hand tools.
- Select wooden stock, determine layouts, and mark layouts of parts on stock, using precision equipment such as scribers, squares, and protractors.
- Mark identifying information on patterns, parts, and templates to indicate assembly methods and details.
- Plan, lay out, and draw outlines of units, sectional patterns, or full-scale mock-ups of products.
- Maintain pattern records for reference.
- Build jigs that can be used as guides for assembling oversized or special types of box shooks.
- Issue patterns to designated machine operators.
- Finish patterns or models with protective or decorative coatings such as shellac, lacquer, or wax.
- Construct wooden models, patterns, templates, full scale mock-ups, and molds for parts of products and production tools.
- Fit, fasten, and assemble wood parts together to form patterns, models, or sections, using glue, nails, dowels, bolts, screws, and other fasteners.
- Fabricate work aids such as scrapers or templates.
- Devise and construct tools, dies, molds, jigs, and fixtures, or modify existing tools and equipment.
- Align, fit, and join parts, using bolts and screws or by welding or gluing.
- Assemble mechanical, electrical, and electronic components into models or prototypes, using hand tools, power tools, and fabricating machines.
- Study blueprints, drawings, and sketches to determine material dimensions, required equipment, and operations sequences.
- Inspect and test products to verify conformance to specifications, using precision measuring instruments or circuit testers.
- Drill, countersink, and ream holes in parts and assemblies for bolts, screws, and other fasteners, using power tools.
- Cut, shape, and form metal parts, using lathes, power saws, snips, power brakes and shears, files, and mallets.
- Set up and operate machines, such as lathes, drill presses, punch presses, or bandsaws, to fabricate prototypes or models.
- Rework or alter component model or parts as required to ensure that products meet standards.
- Grind, file, and sand parts to finished dimensions.
- Program computer numerical control (CNC) machines to fabricate model parts.
- Lay out and mark reference points and dimensions on materials, using measuring instruments and drawing or scribing tools.
- Use computer-aided design (CAD) and computer-aided manufacturing (CAM) software or hardware to fabricate model parts.
- Consult and confer with engineering personnel to discuss developmental problems and to recommend product modifications.
- Record specifications, production operations, and final dimensions of models for use in establishing operating standards and procedures.
- Wire and solder electrical and electronic connections and components.
- Devise and construct tools, dies, molds, jigs, and fixtures, or modify existing tools and equipment.
- Align, fit, and join parts, using bolts and screws or by welding or gluing.
- Assemble mechanical, electrical, and electronic components into models or prototypes, using hand tools, power tools, and fabricating machines.
- Construct wooden models, templates, full scale mock-ups, jigs, or molds for shaping parts of products.
- Fit, fasten, and assemble wood parts together to form patterns, models, or sections, using glue, nails, dowels, bolts, and screws.
- Glue fillets along interior angles of patterns.
- Read blueprints, drawings, or written specifications to determine sizes and shapes of patterns and required machine setups.
- Lay out patterns on wood stock and draw outlines of units, sectional patterns, or full-scale mock-ups of products, based on blueprint specifications and sketches, and using marking and measuring devices.
- Trim, smooth, and shape surfaces, and plane, shave, file, scrape, and sand models to attain specified shapes, using hand tools.
- Divide patterns into sections according to shapes of castings to facilitate removal of patterns from molds.
- Verify dimensions of completed patterns, using templates, straightedges, calipers, or protractors.
- Correct patterns to compensate for defects in castings.
- Set up, operate, and adjust a variety of woodworking machines such as bandsaws and lathes to cut and shape sections, parts, and patterns, according to specifications.
- Finish completed products or models with shellac, lacquer, wax, or paint.
- Estimate costs for patternmaking jobs.
- Mark identifying information such as colors or codes on patterns, parts, and templates to indicate assembly methods.
- Repair broken or damaged patterns.
- Maintain pattern records for reference.
- Compute dimensions, areas, volumes, and weights.
- Select lumber to be used for patterns.
- Collect and store patterns and lumber.
- Inventory equipment and supplies, ordering parts and tools as necessary.
- Issue patterns to designated machine operators.
- Construct wooden models, templates, full scale mock-ups, jigs, or molds for shaping parts of products.
- Fit, fasten, and assemble wood parts together to form patterns, models, or sections, using glue, nails, dowels, bolts, and screws.
- Glue fillets along interior angles of patterns.
- Inspect, clean, and assemble molds before beginning work.
- Release air bubbles and smooth seams, using rollers.
- Spray chopped fiberglass, resins, and catalysts onto prepared molds or dies using pneumatic spray guns with chopper attachments.
- Mix catalysts into resins, and saturate cloth and mats with mixtures, using brushes.
- Check completed products for conformance to specifications and for defects by measuring with rulers or micrometers, by checking them visually, or by tapping them to detect bubbles or dead spots.
- Pat or press layers of saturated mat or cloth into place on molds, using brushes or hands, and smooth out wrinkles and air bubbles with hands or squeegees.
- Select precut fiberglass mats, cloth, and wood-bracing materials as required by projects being assembled.
- Bond wood reinforcing strips to decks and cabin structures of watercraft, using resin-saturated fiberglass.
- Trim excess materials from molds, using hand shears or trimming knives.
- Apply layers of plastic resin to mold surfaces prior to placement of fiberglass mats, repeating layers until products have the desired thicknesses and plastics have jelled.
- Cure materials by letting them set at room temperature, placing them under heat lamps, or baking them in ovens.
- Apply lacquers and waxes to mold surfaces to facilitate assembly and removal of laminated parts.
- Repair or modify damaged or defective glass-fiber parts, checking thicknesses, densities, and contours to ensure a close fit after repair.
- Check all dies, templates, and cutout patterns to be used in the manufacturing process to ensure that they conform to dimensional data, photographs, blueprints, samples, or customer specifications.
- Trim cured materials by sawing them with diamond-impregnated cutoff wheels.
- Mask off mold areas not to be laminated, using cellophane, wax paper, masking tape, or special sprays containing mold-release substances.
- Inspect, clean, and assemble molds before beginning work.
