DRWG120_Development

DRWG120_Development - Surface Development TOPICS Surface...

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Surface Development
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Parallel line development Triangulation TOPICS Sphere development Radial line development Surface development drawing
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3 Surface Development Important part of industrial drafting Familiar items including pipes, ducts for HVAC systems, parts of buildings, aircraft, automobiles, storage tanks, cabinets, office furniture, boxes and cartons, frozen food packages, etc… Materials include paper, various card- boards, plastics and films, metals, wood, fiberboards, fabrics, etc.
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4 Development of a box
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5 Joints, Seams, & Edges
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6 Example Development drawing with a complete set of folding and assembly instructions.
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7 Development of Polygons
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8 Parallel Line Development
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9 Parallel Line Development of Cylindrical Surfaces Parallel line development is used for a cylindrically shaped object that has a single curved surface of one constant radius.
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10
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11 Location of seams on elbows To avoid waste and to simplify cutting the pieces, the seams are alternately placed 180°apart.
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12 Complete development of two-piece elbow
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13 Complete development of four-piece elbow
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DRWG120_Development - Surface Development TOPICS Surface...

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