111c 4.2 pictor

# 111c 4.2 pictor - ENGR 111C Class 4.2 Fall 2008...

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ENGR 111C Fall 2008 Illustrating 3D Objects - Pictorials Class 4.2 September 17, 2008

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Learning Objectives Sketch pictorials of an object (either oblique or isometric) given orthographic views of the object Select the best orientation of an object shown in pictorial Define what makes a drawing a: cavalier oblique, cabinet oblique, general oblique, isometric, axonometric, perspective, or orthographic views
PAT 4.2 Individually sketch three orthographic views of the object shown to the right Use engineering paper Work double scale (i.e. 1 box to 2 boxes) Time: 10 minutes 8 5

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PAT 4.2
Pictorial A three dimensional pictorial is a drawing that shows an object’s three principal planes, much as they would be captured by a camera Sometimes they are called Technical Illustrations

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Pictorial 1. Oblique a) General b) Cavalier c) Cabinet 2. Axonometric a) Isometric b) Dimetric c) Trimetric 1. Perspective a) One point b) Two point c) Three point Three types with three sub-types each.
Cavalier Oblique Front view true size Receding Axis Angle (Normally 30°, 45° or 60°) is Variable Depth dimension (receding axis) true size

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111c 4.2 pictor - ENGR 111C Class 4.2 Fall 2008...

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