Architecture Chapter 14 Homework You need to review the chapter material carefully when preparing the layout sketch

CHAPTER 14 PICTORIAL DRAWINGS

AND TECHNICAL ILLUSTRATIONS

PROBLEMS

INSTRUCTIONS

Choose the best axis to show as many featuresof the object as

possible in your axonometric or oblique drawing. Problem as-

signments are presented as engineering designs or sketches and

may not match proper ASME standards.

For axonometric problems—Problems 14.1 through 14.10—

draw isometric, dimetric, or trimetric as assigned. For oblique

problems—Problems 14.11 through 14.17—draw cavalier,

cabinet, or general oblique as assigned. Remember that circular

features are best shown in the front plane of the oblique view.

For perspective problems—Problems 14.18 through

14.25—make a one-, two-, or three-point perspective drawing

as assigned except for Problem 14.18, which should be done as

a one-point perspective view. All objects can be turned at any

desired angle on the picture-plane line for viewing from the

station point, except Problem 14.18, which should be drawn in

the direction indicated.

1. Make a freehand sketch of the object to assist in visualiza-

tion and layout of axonometric and oblique problems.

2. For axonometric and oblique problems, select a scale to fit

the drawing comfortably on an A- or B-size (A4 or A3 metric)

drawing sheet. Use a C- or D-size (A2 or A1 metric) drawing

sheet for drawing an initial layout of the perspective prob-

lems on sketch paper or butcher paper.

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3. Dimension axonometric or oblique problems only if

assigned by your instructor. Do not place dimensions on a

perspective view.

4. Perspective objects without dimensions can be measured

directly on the given problem and scaled up as indicated or

assigned.

5. Use an ASME standard border and sheet block, unless

otherwise specified by your instructor.

PROBLEM 14.5 Axonometric projection (in.)

.45 .75 .75

.75

.50

.45 .125

3.10

1.00

2.90

1.45

2.50

1.00

.75 .55

.75

2X

[1.15

4.20

1.91

72

[2.10

2X 458 3.12

.38

135

[18

45

20

65

R34

R32

R22

R32

20

PROBLEM 14.2 Axonometric projection (in.)

PROBLEM 14.3 Axonometric projection (in.)

DRAFTING

TEMPLATES

To access CADD template

files with predefined drafting

settings, go to the Student

Companion Website, select

Student Downloads,

Drafting Templates, and then

the appropriate template file.

Part 1: Problems 14.1 Through 14.5

PROBLEM 14.1 Axonometric projection (in.)

PROBLEM 14.4 Axonometric projection (metric)

.90

1.45

.90

458

.50

4.00

1.65

2.00

1.10

1.00

2.00

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Part 2: Problems 14.6 Through 14.10

PROBLEM 14.6 Axonometric projection (metric)

17

10

88

51

22

13

38

44

∅15

PROBLEM 14.7 Axonometric projection (in.)

.90

.30

1.50

2.15

.25

1.75

4.25

.50

1.00

.25

.64

45°

4X ∅.40

PROBLEM 14.8 Axonometric projection (metric)

12

24

64

32

12

55

112

2X ∅15

2X 45°

64

12

50

PROBLEM 14.9 Axonometric projection (metric)

40 20

90

43

60

133

182

33

13

∅50∅70

64

PROBLEM 14.10 Axonometric projection (in.)

2

KEYWAY

∅1

1

2

1

4

∅2

1

4

∅1

1

4

2

1

4

2

3

4

3

8

3

16

1

3

8

×

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PROBLEM 14.13 Oblique projection (in.)

D

2.62

1.125

1.123 R1.12

.50

5.24

3.76

1.88

.75

1.50

1.62

.62

2X D.65

[1.00

[2.76

[.18

[1.75

[3.90

4X [.34

458

.54

1.24 [.56

.19

Part 3: Problems 14.11 Through 14.13

PROBLEM 14.11 Oblique projection (in.)

PROBLEM 14.12 Oblique projection (in.)

Part 4: Problems 14.14 Through 14.17

PROBLEM 14.14 Oblique projection (metric)

38

57

45°

13

18

58

15

20

19

2X ∅12

94

19

PROBLEM 14.15 Oblique projection (in.)

2X ∅.50

2X ∅3.00

3.50

1.00

2.00

.50

PROBLEM 14.16 Oblique projection (in.)

R1.00

∅.65 ∅.90

2X ∅.85

4.70

.24

.48

.52 .39

.64 1.42

.40

2.30 1.40

R.150

R.100

.50

2.00

4.00

1.55

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PROBLEM 14.17 Oblique projection (in.)

∅

∅1.94

2X ∅.58

2.30

1.15

R.80

2.12

1.75

.50

.48

1.130

1.126

Part 5: Problems 14.18 and 14.19

PROBLEM 14.18 Perspective

PLAN

VIEW

ELEVATION

WINDOW

CEILING

D

C

A

B

F

E

PROBLEM 14.19 Perspective

53′

11′

18′

26′

Part 6: Problems 14.20 Through 14.25

PROBLEM 14.20 Perspective

MEASURE AND INCREASE 2X

PROBLEM 14.21 Perspective

MEASURE AND INCREASE 2X

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PROBLEM 14.22 Perspective

MEASURE AND INCREASE 2X

PROBLEM 14.23 Perspective

PLAN

ELEVATIONS

D

E

F

C

B

DD

C

A

B

F

E

MEASURE AND INCREASE 3X

PROBLEM 14.24 Perspective

MEASURE AND INCREASE 3X

PROBLEM 14.25 Perspective

13’–0″

2’–0″

20’–0″ 15’–0″ 6’–0″

12’–0″4’–0″

20’–0″

9’–0″

6’–0″

3’–0″

10’–0″

3’–0″

6’–10″

7’–0″

30’–0″

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Part 7: Problems 14.26 and 14.27

ADVANCED PROBLEM 14.26

Go to the Chapter 15, Working Drawings, problems. These prob-

lems are presented as assembly drawings, exploded isometric

assembly drawings, parts lists, and dimensioned isometric detail

drawings. An assembly drawing is a drawing that shows how the

parts of a product go together. A detail drawing is a drawing of an

individual part that contains all of the views, dimensions, and

specifications necessary to manufacture the part. A parts list

identifies every part in the assembly and is a tabulation of all

parts and materials used in a product. These drawing types are

described in detail in Chapter 15, Working Drawings. These fun-

damentals are not important at this time.

From the problems in Chapter 15, Working Drawings, select

one or more of the problems or as assigned by your instructor.

Using the drawings and information provided in the assigned or

selected problem, create an exploded isometric technical illus-

tration, with trails, and identification numbers correlated to a

parts list. Dimensions are not required. There is no recommended

ITEM NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

HOUSING

LUBE PORT SCR

GUIDE

GUIDE SCREW

AXLE SLIDE

PIVOT GEAR

TRANSFER GEAR

PINION GEAR

DRIVE GEAR

ANTI REVERSE SPG

ANTI REVERSE

COVER PLATE

COVER SCREW

ITEM NO.

14

15

16

17

18

19

20

21

22

23

24

25

26

SHANKE SCREW

SHANKE SHAFT

SHANKE HANDLE

HANDLE KNOB

HANDLE SCREW

ROTATING BODY

BAIL SCREW

BAIL

TRIP LEVER

LEVER SCREW

TRIP SPRING SCR

TRIP SPRING

BAIL SCREW

ITEM NO.

27

28

29

30

31

32

33

34

35

36

37

38

39

BAIL SPRING

WEIGHT SCREW

COUNTER WEIGHT

ROLLER LINE

LINE SCREW

BAFFLE PLATE

HEX NUT

AXLE

SPINDLE

CLICK SPRING

SPOOL

BRAKE SPRING

DRAG KNOB

PART NAME

PARTS LIST

SPINNING REEL

PART NAME

11

10

7

4

5

6

26

27

30

25

8

9

39

38

37

28

29

35

36

33

31

32

34

13

3

2

1

12

14

15

16

17

18

24

23

22 21

20

19

solution. and these problems are considered advanced. In addi-

tion or alternately, use your 3-D modeling program to create solid

models of the selected parts and assembly. Confirm the preferred

approach with your instructor.

ADVANCED PROBLEM 14.27

Find a product of your choice or as assigned by your instructor.

The product should have at least four parts and must be some-

thing that you can easily disassemble without destroying. This is

entirely your responsibility. Using the selected product, create an

exploded isometric technical illustration, with trails, and identi-

fication numbers correlated to a parts list. You need to measure

the parts to create the drawings. Measurements should be ac-

curate, but exact measurements are not required, because the

drawings will not be dimensioned. There is no recommended

solution, and these problems are considered advanced. In addi-

tion or alternately, use your 3-D modeling program to create

solid models of the selected parts and assembly. Confirm the

preferred approach with your instructor. The following is an

example of an exploded isometric assembly drawing:

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MATH PROBLEMS

Part 8: Problems 14.28 Through 14.32

PROBLEM 14.28 Provide the measurements required to con-

struct isometric, dimetric, and trimetric projections using the

following actual dimensions of the parts. The dimetric and tri-

metric angles are given.

DIMENSION ISOMETRIC DIMETRIC TRIMETRIC

Left axis 1.55 _____ (108)_____ (258)_____

Right axis 2.95 _____ (408)_____ (458)_____

Vertical axis 2.07 _____ _________ _________

PROBLEM 14.29 Provide the dimetric projection measure-

ments for an object with the following actual dimensions. The

left and right axis angles are given.

DRAWING

DIMENSION MEASUREMENT

Left axis 258 2.87 _______

Right axis 408 4.46 _______

Vertical 3.22 _______

PROBLEM 14.30 Provide the trimetric projection measure-

ments for an object with the following actual dimensions. The

left and right axis angles are given.

DRAWING

DIMENSION MEASUREMENT

Left axis 108 4.95 _______

Right axis 608 3.18 _______

Vertical 2.86 _______

PROBLEM 14.31 If a 3/4 scale is used to draw the receding

axis of a general oblique object, how long would you draw the

following dimensions on the receding axis?

3.23 ____

6.54 ____

2.48 ____

4.29 ____

PROBLEM 14.32 If a cylindrical object has a diameter of

3.75 in., what is the approximate width of the block shading

that should be applied to it?

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190



Chapter 14

Pictorial Drawings and Technical Illustrations

Solutions to End-of- Chapter Problems

Part 1: Problems 14.1 Through 14.5

191



PROBLEM 14.3 Axonometric projection

192



Part 2: Problems 14.6 Through 14.10

PROBLEM 14.6 Axonometric projection

193



PROBLEM 14.8 Axonometric projection

194



Part 3: Problems 14.11 Through 14.13

PROBLEM 14.11 Oblique projection

195



Part 4: Problems 14.14 Through 14.17

PROBLEM 14.14 Oblique projection

196



PROBLEM 14.17 Oblique projection

197



Part 6: Problems 14.20 Through 14.25

PROBLEM 14.20 Perspective

198



PROBLEM 14.23 Perspective

199



Part 7: Problems 14.26 and 14.27

ADVANCED PROBLEMS 14.26 AND 14.27 Solutions vary depending on selected

Math Problem Solutions

Part 8: Problems 14.28 Through 14.32

PROBLEM 14.28

DIMENSION ISOMETRIC DIMETRIC TRIMETRIC

PROBLEM 14.29

DIMENSION DRAWING MEASUREMENT

PROBLEM 14.30

DIMENSION DRAWING MEASUREMENT

PROBLEM 14.31