Principles of Computer-Aided Design and Manufacturing Second Edition 2004 ISBN 0-13-064631-8

1. University of Illinois-Chicago Chapter 5 Solid Modeling Principles of Computer-Aided Design and Manufacturing Second Edition 2004 ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche University of Illinois-Chicago

2. CHAPTER 5 6.2 SYSTEM MODELING 5.1 INTRODUCTION 5.2 CONSTRUCTION TECHNIQUES TThese techniques include : 1 - Boolean operation 2 - Sweeping A - Automated filleting and chamfering 4 - Tweaking F - Fleshing out of wireframes and projections Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

3. CHAPTER 5 6.2 SYSTEM MODELING 5.2.1 Boolean Operation Figure 5.1 Boolean operations Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

4. CHAPTER 5 6.2 SYSTEM MODELING Figure 5.2 Boolean operations applied to a square and a circle Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

5. CHAPTER 5 6.2 SYSTEM MODELING 5.2.2 Sweeping Figure 5.3(a) Sweeping Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

6. CHAPTER 5 6.2 SYSTEM MODELING Figure 5.3(b) Turning Figure 5.3(c) Swinging Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

7. CHAPTER 5 6.2 SYSTEM MODELING 5.2.3 Automated Filleting and Chambering Figure 5.4 Filleting Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

8. CHAPTER 5 6.2 SYSTEM MODELING 5.2.4 Tweaking Figure 5.5 Tweaking 5.2.5 Fleshing Out Wireframes and Projections Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

9. CHAPTER 5 6.2 SYSTEM MODELING 5.3 REPRESENTATION SCHEMES 5.3.1 Instantiation Figure 5.6 Some system supplied primitives Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

10. CHAPTER 5 6.2 SYSTEM MODELING Figure 5.7 A user-defined primitive Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

11. CHAPTER 5 6.2 SYSTEM MODELING 5.3.2 Boundary Representation Figure 5.8 Sweeping and swinging operations Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

12. CHAPTER 5 6.2 SYSTEM MODELING 5.3.3 Constructive Solid Geometry Figure 5.9 Boolean operations (solid objects). Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

13. CHAPTER 5 6.2 SYSTEM MODELING Figure 5.10 Constructive solid geometry. Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

14. CHAPTER 5 6.2 SYSTEM MODELING Example 5.1 Construction of a Wrench Using boundary representation, construct the part shown in Figure 5.11. Figure 5.11 Wrench Solution Figure 5.12 Boolean Operation Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

15. CHAPTER 5 6.2 SYSTEM MODELING Example 5.2 Construction of a Solid Model Using constructive solid geometry representation, construct the solid model shown in Fig 5.13. Figure 5.13 A solid Model Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago Solution

16. CHAPTER 5 6.2 SYSTEM MODELING Solution Figure 5.14 Boolean operations on the solid model Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

17. CHAPTER 5 6.2 SYSTEM MODELING 5.3.4 Cellular Decomposition Simple Regular Grid. Figure 5.15 Regular grid. Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

18. CHAPTER 5 6.2 SYSTEM MODELING Octree Adaptive Grid. 1. Classical Octree Encoding. Figure 5.16 Classical octree representation. Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

19. CHAPTER 5 6.2 SYSTEM MODELING Figure 5.17 Parenthesize linear representation 2. Exact Octree Encoding Figure 5.18 Octree encoding Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago

20. CHAPTER 5 6.2 SYSTEM MODELING Principles of Computer-Aided Design and Manufacturing Second Edition 2004 – ISBN 0-13-064631-8 Author: Prof. Farid. Amirouche, University of Illinois-Chicago