LOFT PATTERNMAKER

Domain	Definition
Occupations	Plans, lays out, and constructs master full-scale models, forms, mockups, check jigs, and plaster patterns for casting master tooling used in manufacturing aeronautical and aerospace products, utilizing knowledge of plaster patternmaking, metal forming, and foundry practices and procedures, using precision instruments, tools, and equipment: Studies engineering tool design data, loft information, and blueprints to determine sequence of operations and to develop layout for constructing master model. Lays out, locates, and aligns steel skeletons and master contour templates on surface table or other base structure to form model frame, using precision measuring instruments and devices, such as micrometers, calipers, and transit. Forms plaster over template frame and hand finishes plaster to peripheral dimensions of contour templates, using scrapers, fairing tools, and other handtools. Verifies finished dimensions of master model, using precision instruments. Scribes butt, water, and station lines on master model to establish location points, reference lines, and contours for subsequent pattern casting. Casts plaster pattern (splash) from sections of master model, and recasts pattern to produce working patterns of contour templates, check templates, and related tooling. May fabricate master patterns, jigs, templates, or mockups from materials other than plaster, such as wax, plastic, and fiberglass. May cut out and fabricate flat contour templates from engineering or loft information. (references)
	Casts and finishes plaster patterns used in making precision sand molds for dies, tools, and machine parts, according to specifications: Constructs boxlike enclosure around part to be cast, filling in cracks and openings with clay. Lubricates surface with parting agent that prevents plaster from sticking to part. Mixes plaster and pours it into enclosure. Reinforces plaster with hemp fiber and small steel rods or heavy wire. Removes hardened plaster cast from enclosure. Patches broken edges and fractures, using clay or plaster. Trims plaster pattern to tolerance by scraping and shaping plaster surfaces by hand following blueprint, using flat metal scrapers. Verifies dimensions, using measuring instruments, such as calipers, vernier gauge, and protractor. Makes identifying marks on pattern with crayon, inked rubber stamps, or pointed tool. Shellacs finished surfaces to harden and smooth them. (references)
Source: compiled by the editor from various references; see credits.

Anagrams: LOFT PATTERNMAKER

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-a-e-e-f-k-l-m-n-o-p-r-r-t-t-t"
	-5 letters: aftermarket, treponemata.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.