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I - 7 March 5, 2008 Trade ¼” / 1/8”-scale worksheet with a partner. Check each other’s measurements – –Put a check next to the # if correct –Put an “X” next to the # if incorrect Fix any incorrect answers. You have ~8 minutes
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DESIGN DRAWINGS An engineer designs an object. How many drawings are needed to communicate the design to the manufacturer (people who make it)? I - 7
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3-VIEW DRAWINGS Orthographic Projections –What other words use the prefix ORTHO? Orthodontist, Orthopedic, Orthogonal, Orthodox –Orthographic refers to looking straight at an object Top View Front View Right Side View Bottom View Back View Left Side View Top View Front View Right Side View I - 7
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3-VIEW DRAWINGS TOP VIEW FRONT VIEWRT SIDE VIEW I - 7
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Why use orthographic projections? –They are sufficient for correctly manufacturing an object as the designers intended. 3-VIEW DRAWINGS I - 7
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3-VIEW DRAWINGS TOP VIEW FRONT VIEWRT SIDE VIEW I - 7
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3-VIEW DRAWINGS 1 7 3 2 4 5 I - 7
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Orthographic Projections I - 7 3-View Worksheet #1
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Orthographic Projections I - 7
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Orthographic Projections
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I - 7 Orthographic Projections
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I - 7
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Homework Complete the front and back of both orthographic projection worksheets Have steps 2 and 3 COMPLETE in your group notebook for Monday’s class Your design drawings in Step 2 should have dimensions: how big is each object? I - 7
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Sources ITEA “Colonizing the Moon Challenge” Draft Document curriculum Wright, R. Thomas. Technology. Muncie: G-W, 2008. I - 7
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