Features
of
the
textbook
vii
Copyright Goodheart-Willcox Co., Inc.
541
Copyright Goodheart-Willcox
Co., Inc.
Chapter18
Dimensi o
ningFeatures a
n
d
AlternatePractices
Drawing Problems
Start
Auto
CAD if
it is not already star
ted. Start a new drawing for each problem an
appropriate
template of
your choice. The template should include layers text,
disusingenecessary.oon8.e5″a×
mension,
and multileader styl
es
, wh
en necessary, for drawing the
given objects. Add
layers and text,
di
mension, and
multileader styles as needed.
Draw all objects using
apprand
opriate layers. Use
propriate
text,
dimension, and multil
eader
stawingjustification, yles,
and format. Follow the specific
inst
ructions for
each problem. Use only dr
and editinindustry
g commands and techniques you
ha
ve
alremensions
ady learned. Use your
own
judgment and approximate dimensions when
Apply
di
accur
ately using ASME or
appropriate
standards.
▼
Basic
1.
Me
chanical
Save
P4-3
as
P18-1.If
youhaveewl
n
ot yet
completed
Probl e
m
4-3,d
so
now.Intesus h
e
P18-1
file,centerlinel.If cr
eate o r
import a
n
aye
r
f o
r
center
lin
es,
a
nd
draw
t h
centerlin
in
g t
h e
aye
r
.
2.
Me
chanical
Save
P4-7
as
P18-2rimport
youhaveewl
not yet
completedPres,
obl e
m
4-,dot
7
so
now.In
t
h
e
P18-2
file,crnterlinel
eate o
a
n
aye r
f
o
r
centerlin
a
nd
draw
h
e
centerlinesusDraw
in
g t h
e
ce
aye
r .
3.
Mechanical
a
n
d
dimensi o
n
t
h e
part
vewshown
i
. Save t
hedrawing as
P18-3.
.500
1.750
2.250
1.750
2.500
.500
3.500
1.125
4X Ø.500
Ø.625
3X R.250
Drawing Pro
b
lems
-
Cha
pt
er 18
Cop
d
ingan
n
d
he
ob
tif
nd
d
a
ro
u
o
r
r
f
y
m
l a
s
i
o
d
in
g
n
an
d
e
bj
if
d
a
op
h
r
r
.
y
m
a
i o
5477 Copyright Goodheart-Willcox Co., Inc. Chapter 18 Dimensioning Featurress and Allternate Practicess
Drawing
Pro
b
lems
-
Cha
pt
er
18
▼
Intermap-diaDraw
e te
15. M e chanical nd dimension the thumb screw shown. Save the drawing as
P18-15
. Prin t an 11″ copy of the drawing extents using a 1:1 scale and land-
cap orientati .
Ø.1511
35°°
.219
.688
Ø.437
PITCH 64 DIAMOND KNURL
2X .032 X 45°
R.032
10-32 UNF-2A
.155 FULL KNURL
For Problems 16 through 18, draw and dimension orthographic views needed to describe
part completely. Save the drawings as P18-16, P18-17, and P18-18.
16. Mechanical
Tiitle:: Sh him MS
Mettricc 10 THK
AutoCAD Certified Professional Exam Practice
Answer the following questions using the information in this chapter.
1. Which of the following terms describes the dimension 18.75±.25? Select all that apply.
A. deviation tolerance
B. equal bilateral tolerance
C. limit dimensioning
D. plus-minus dimensioning
E. symmetrical tolerance
F. unequal bilateral tolerance
2. Which AutoCAD tolerancing method can you use to create an unequal bilateral
tolerance? Select the one item that best answers the question.
A. Basic
B. Deviation
C. Limits
D. None
E. Symmetrical
3. What is the specified dimension in the tolerance shown here? Select the one item
that best answers the question.
A. 10.17
B. 10.50
C. 10.60
D. 10.62
E. 10.67
Follow the instructions in each problem. Complete each problem by answering the related question.
4. Navigate to this chapter on the companion website and open CPE-19limits.dwg.
Create a new dimension style named Limits and select the Limits tolerancing
method. Set the primary units to use two-place precision and set the upper and
lower tolerance values to .25. Use the Limits dimension style to create the two
dimensions shown. What are the limits of Dimensions A and B?
5. Navigate to this chapter on the companion website and open CPE-19unilateral.dwg.
Create a new dimension style named Unilateral and select the appropriate toler-
ancing method to create a unilateral tolerance. Set the primary units to use
three-place precision. Set an upper limit of 0 and a lower limit of –.021. Make the
necessary setting to suppress leading zeros. Use the Unilateral dimension style to
create the two dimensions shown. What are the limits of Dimensions C and D?
AutoCAD
Certified
Professional
Exam
Practice
-
Chapter
19
578
Copyright Goodheart-Willcox Co., Inc. AutoCAD and Its Applications—Basics
54 Ch ap ter 1 8 D i m e n s i o n i n g F e at u e a n d A t e r n a te Pr a c t i c e
Dr
aw
r r
ing
Pro
b
lems
-
C
ha
pt
er
18
Ø .15
3 5
9
. 688
mens ion tthee h orthogra ph ic vi ews nee d ed to d escri be tthee h
-16
,
P1 8 -17
, and
7 7 P1 8 -18
.
t l t l e l e e e: : S S S S h h him M S S
M e et r t r r ri i i ic c c 1 1 1 0 TH K
551 Copyright Goodheart-Willcox Co., Inc. Chapter 18 Dimensioning Features and Alternate Practices
Drawing
Problems
-
Chapter
18
▼ Advanced
23. Mechanical Draw and dimension the part views shown. Do not draw the table.
Save the drawing as P18-23.
0.000
0.000
.750
.875
1.250
3.125
5.250
6.000
3.938
9.95
0
.000
.750
1.500
5.000
13.250±.031
.000
.281
12.969
9.95
0 7.750 6.000 5.500 4.375 3.875
B
A
A
A
C
D
G
G G
G
F
E
B
A
A
5.125
5.250
8.875
.465
.500
2X R.47
.188
.375
2X R
SCALE: 2:1 SCALE: 2:1
Ø.141
SEE VIEW A
Ø.813
Ø1.625
Ø.594
Ø.500
SEE VIEW B
HOLE LEGEND
G
F
E
D
C
B
A
VIEW A VIEW B
24. Mechanical Draw and dimension the part views shown. Save the drawing as P18-24.
Title: Bracket
Material: SAE 1040
Drawing Problems
require application of
chapter concepts and
problem-solving techniques.
Problems are grouped
in order of diffi culty and
are classifi ed as Basic,
Intermediate, or Advanced.
AutoCAD Certifi ed
Professional Exam
Practice questions help
prepare you for the
AutoCAD professional
level certifi cation exam.
Discipline labels identify
problems from different
drafting disciplines.
Discipline Labels
Mechanical
Architectural
Electronics
General
Civil
Graphic Design
Piping