1. Dimension Guidelines
Introduction to Engineering Design
Unit 2 – Lesson 2.2 – Dimensions and Tolerances
6. A dimension should be attached to only one view; for example, extension lines should not connect two views.
Reference:
Pg 426 Technical Drawing 9th Edition by Frederick Giesecke et. al.
Incorrect
Project Lead The Way, Inc.
Copyright 2007

2. Dimension Guidelines
Introduction to Engineering Design
Unit 2 – Lesson 2.2 – Dimensions and Tolerances
6. A dimension should be attached to only one view; for example, extension lines should not connect two views.
Reference:
Pg 426 Technical Drawing 9th Edition by Frederick Giesecke et. al.
Project Lead The Way, Inc.
Copyright 2007

3. Dimension Guidelines
Introduction to Engineering Design
Unit 2 – Lesson 2.2 – Dimensions and Tolerances
7. Whenever possible, locate dimensions between adjacent views.
Incorrect
References:
Pg 342 Engineering Drawing and Design 3rd Edition by David Madsen et. al.
Pg 108 Fundamentals of Modern Drafting by Paul Wallach
Pg 426 Technical Drawing 9th Edition by Frederick Giesecke et. al.
Project Lead The Way, Inc.
Copyright 2007

4. 7. Whenever possible, locate dimensions between adjacent views.
Dimension Guidelines
Introduction to Engineering Design
Unit 2 – Lesson 2.2 – Dimensions and Tolerances
7. Whenever possible, locate dimensions between adjacent views.
References:
Pg 342 Engineering Drawing and Design 3rd Edition by David Madsen et. al.
Pg 108 Fundamentals of Modern Drafting by Paul Wallach
Pg 426 Technical Drawing 9th Edition by Frederick Giesecke et. al.
Project Lead The Way, Inc.
Copyright 2007

5. Incorrect 8. Avoid dimensioning to hidden lines. 0.75 0.75 Reference:
Dimension Guidelines
Introduction to Engineering Design
Unit 2 – Lesson 2.2 – Dimensions and Tolerances
8. Avoid dimensioning to hidden lines.
Incorrect
Reference:
Pg Engineering Drawing and Design 3rd Edition by David Madsen et. al.
0.75
0.75
Project Lead The Way, Inc.
Copyright 2007

6. 8. Avoid dimensioning to hidden lines.
Dimension Guidelines
Introduction to Engineering Design
Unit 2 – Lesson 2.2 – Dimensions and Tolerances
8. Avoid dimensioning to hidden lines.
Reference:
Pg Engineering Drawing and Design 3rd Edition by David Madsen et. al.
0.75
Project Lead The Way, Inc.
Copyright 2007

7. Dimension Guidelines
Introduction to Engineering Design
Unit 2 – Lesson 2.2 – Dimensions and Tolerances
9. Do not place dimensions on the object unless it is absolutely necessary.
Incorrect
References:
Pg 342 Engineering Drawing and Design 3rd Edition by David Madsen et. al.
Pg 394, 404, 426 Technical Drawing 9th Edition by Frederick Giesecke et. al.
Pg 692 Technical Graphics Communication 3rd Edition by Gary Bertoline & Eric Wiebe
Project Lead The Way, Inc.
Copyright 2007

8. Dimension Guidelines
Introduction to Engineering Design
Unit 2 – Lesson 2.2 – Dimensions and Tolerances
9. Do not place dimensions on the object unless it is absolutely necessary.
References:
Pg 342 Engineering Drawing and Design 3rd Edition by David Madsen et. al.
Pg 394, 404, 426 Technical Drawing 9th Edition by Frederick Giesecke et. al.
Pg 692 Technical Graphics Communication 3rd Edition by Gary Bertoline & Eric Wiebe
Project Lead The Way, Inc.
Copyright 2007

9. Dimension Guidelines
Introduction to Engineering Design
Unit 2 – Lesson 2.2 – Dimensions and Tolerances
10. Do not cross a dimension line with another dimension line or with an extension line.
References:
Pg 342 Engineering Drawing and Design 3rd Edition by David Madsen et. al.
Pg 394, 426 Technical Drawing 9th Edition by Frederick Giesecke et. al.
Project Lead The Way, Inc.
Copyright 2007

10. Dimension Guidelines
Introduction to Engineering Design
Unit 2 – Lesson 2.2 – Dimensions and Tolerances
10. Do not cross a dimension line with another dimension line or with an extension line.
References:
Pg 342 Engineering Drawing and Design 3rd Edition by David Madsen et. al.
Pg 394, 426 Technical Drawing 9th Edition by Frederick Giesecke et. al.
Project Lead The Way, Inc.
Copyright 2007