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Sketching

Chapter Description

In this sample chapter from Engineering Graphics with AutoCAD 2020, author Bethune presents the fundamentals of freehand sketching as applied to technical situations. It includes both two-dimensional and three-dimensional sketching. Like any skill, freehand sketching is best learned by lots of practice.

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Engineering Graphics with AutoCAD 2020

Engineering Graphics with AutoCAD 2020

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4-14 Exercise Problems

Sketch the shapes in Exercise Problems EX4-1 through EX4-6. Measure the shapes to determine their dimensions.

EX4-1

EX4-2

EX4-3

EX4-4

EX4-5

EX4-6

Prepare isometric or perspective sketches of the objects shown in Exercise Problems EX4-7 through EX4-18. Measure the objects to determine their dimensions.

EX4-7

EX4-8

EX4-9

EX4-10

EX4-11

EX4-12

EX4-13

EX4-14

EX4-15

EX4-16

EX4-17

EX4-18

Prepare oblique or perspective sketches of the objects shown in Exercise Problems EX4-19 through EX4-22. Measure the objects to determine their dimensions.

EX4-19

EX4-20

EX4-21

EX4-22

Prepare isometric sketches of the shapes that follow, each in the given orientation, and then sketch the objects in the three different orientations defined by the X,Y,Z axes. Assume that the spacing between dots in the background grid is approximately 0.25 inch, or 10 millimeters.

EX4-23

EX4-24

EX4-25

EX4-26

EX4-27

EX4-28

EX4-29

EX4-30

EX4-31

EX4-32

EX4-33

EX4-34

EX4-35

EX4-36

EX4-37

EX4-38

EX4-39

EX4-40

EX4-41

EX4-42

EX4-43

EX4-44

EX4-45

EX4-46

EX4-47

EX4-48

EX4-49

EX4-50

Sketch the following objects.

EX4-51

EX4-52

EX4-53

04ex53.jpg

EX4-54

04ex54.jpg

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