chapter 6 creating t echnical drawings

Chapter 6Creating Technical Drawings

1

2

VIEWS of OBJECTS

3

How to draw this

4

Regular Views

5

The Six Standard Views

6

Necessary ViewsHow many necessary views are needed here?

7

Three Necessary Views

How Many Necessary Views?

9

Two Necessary Views

How Many Necessary Views?

11

One Necessary View

12

Orthographic Projection(3rd Angle

Projection)

13

Projection of an Object

14

Front View

15

Top View

16

Right-Side View

17

The Glass Box

18

The Glass BoxUnfold It

19

Unfolding the Box

20

Unfolding the Box (2)

21

Unfolding the Box (3)

22

Standard Views

23

How to Interpret Lines

24

Folding Lines

25

Transferring Depth Dimensions

26

Projecting a Third View (1)

27

Projecting a Third View (2)

28

Projecting a Third View (3)

29

Projecting a Third View (4)

30

Projecting a Third View (5)

31

Aligning Views

32

Alignment of Views

The standard view set forms an L

33

Alternative Positions of Views

Minimize wasted space

34

Parallel Edges

35

Angles

Angle will only print correctly, if the view is on the plane of that angle

36

Interpreting Views• One method of interpreting sketches

is to reverse the mental process used in projecting them

• Each view provides certain definite information about the shape of the object and all are necessary to visualize it completely

37

First- and Third-Angle Projection

• There are two main systems used for projecting and unfolding the views:– Third-angle projection which is used in

the United States, Canada and some other countries

– First-angle projection which is primarily used in Europe and Asia

• You should understand both methodsWe will only use 3rd angle

38

First-angle Projection

Create your own drawing

Make The Drawing

40

Turn it into a drawing

Choose the sheet size

A is regular 8.5”x11”

View Pallete

Toolbar

Open The 3 Standard Views• Choose ‘Standard 3 View’ under

‘View Layout’

• Choose the part you want to draw, and click the check

46

Right click the sheet, and choose ‘properties’

Change doc properties• Change scale• Change projection type

Change the drawing view• Click on the1st view

49

Choose a different view• Click on the viewyou prefer

50

51

Choose view hidden lines

52

53

Add in a projected view• Choose the first view• Then movethe mouse

54

55

Bi-directional associativity• Change a dimension in 1 part, it

follows through

56

It updates elsewhere

57

Add in dimensions• Choose ‘Model Items’

• Select each drawing that you want dimensioned

59

Change the number of decimals

60

Add/Delete Dimensions• Use smart dimensions under the

annotations tab to add more• Right click >> delete to delete

dimensions

61

Auxiliary View • Add in views along a plane• Better for edges at weird angles• View layout >> Auxiliary view• Choose an edge

62

Section View• Cutting up a part, to better view the

part• View layout >> Section views• Can use one of the standard options

for lines, or draw your own

63

64

Section View

65

Placement of Section Views

Centerlines match up

66

Help view more information

67

Placement of Section Views

68

Labeling Cutting Planes

Add in centerlines• Annotation >> Center Mark• Annotation >> Centerlines

– Select 2 lines to put the centerline inside of

69

Detail view• View layout >> Detail View• Choose a region to view in detail• Draw a circle

70

Rotate view• Choose the rotate view button in the

dashbar

71

Add in other views• View Layout >> Model View• Right click the part to align• Choose Alignment >> Align horizontal

by origin– Choose the other drawing you want it

aligned with

72

Put in your name/information

• Add in a textbox– Annotation >> Note

• Select the area where it should be written

• Write you name, and assignment info.

73

Assignment• Take all of the homeworks.• Turn them into technical drawings• Print them and hand them in• Graded on aesthetics

– How much blank space– How neat it looks

74