SOLIDWORKS 2016 Education Edition 3D Design, Simulation User manual

Below you will find brief information for 3D Design 2016 Education Edition, Simulation Simulation. SOLIDWORKS® is a powerful 3D CAD software that allows you to design and simulate products. With SOLIDWORKS®, you can create 3D models, generate drawings, and perform simulations to test your designs. SOLIDWORKS® is used by engineers, designers, and manufacturers around the world to create innovative products.

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SOLIDWORKS

®

2016

SOLIDWORKS Education Edition -

Fundamentals of 3D Design and

Simulation

Dassault Systèmes SolidWorks Corporation

175 Wyman Street

Waltham, MA 02451 U.S.A.

Dassault Systèmes SE company, 175 Wyman Street, Waltham,

The information and the software discussed in this document are subject to change without notice and are not commitments by

Dassault Systemes SolidWorks Corporation (DS SolidWorks).

No material may be reproduced or transmitted in any form or by any means, electronically or manually, for any purpose without the express written permission of DS SolidWorks.

The software discussed in this document is furnished under a license and may be used or copied only in accordance with the terms of the license. All warranties given by DS SolidWorks as to the software and documentation are set forth in the license agreement, and nothing stated in, or implied by, this document or its contents shall be considered or deemed a modification or amendment of any terms, including warranties, in the license agreement.

Patent Notices

SOLIDWORKS® 3D mechanical CAD and/or Simulation software is protected by U.S. Patents 5,815,154; 6,219,049;

6,219,055; 6,611,725; 6,844,877; 6,898,560; 6,906,712;

7,079,990; 7,477,262; 7,558,705; 7,571,079; 7,590,497;

7,643,027; 7,672,822; 7,688,318; 7,694,238; 7,853,940;

8,305,376; 8,581,902; 8,817,028, 8,910,078, 9,129,083,

9,153,072 and foreign patents, (e.g., EP 1,116,190 B1 and JP

3,517,643).

eDrawings® software is protected by U.S. Patent 7,184,044;

U.S. Patent 7,502,027; and Canadian Patent 2,318,706.

U.S. and foreign patents pending.

Trademarks and Product Names for SOLIDWORKS

Products and Services

SOLIDWORKS, 3D ContentCentral, 3D PartStream.NET, eDrawings, and the eDrawings logo are registered trademarks and FeatureManager is a jointly owned registered trademark of

DS SolidWorks.

CircuitWorks, FloXpress, PhotoView 360, and TolAnalyst are trademarks of DS SolidWorks.

FeatureWorks is a registered trademark of Geometric Ltd.

SOLIDWORKS 2016, SOLIDWORKS Standard,

SOLIDWORKS Professional, SOLIDWORKS Premium,

SOLIDWORKS PDM Professional, SOLIDWORKS PDM

Standard, SOLIDWORKS Workgroup PDM, SOLIDWORKS

Simulation, SOLIDWORKS Flow Simulation, eDrawings, eDrawings Professional, SOLIDWORKS Sustainability,

SOLIDWORKS Plastics, SOLIDWORKS Electrical,

SOLIDWORKS Composer, and SOLIDWORKS MBD are product names of DS SolidWorks.

Other brand or product names are trademarks or registered trademarks of their respective holders.

COMMERCIAL COMPUTER SOFTWARE - PROPRIETARY

The Software is a "commercial item" as that term is defined at 48

C.F.R. 2.101 (OCT 1995), consisting of "commercial computer software" and "commercial software documentation" as such terms are used in 48 C.F.R. 12.212 (SEPT 1995) and is provided to the U.S. Government (a) for acquisition by or on behalf of civilian agencies, consistent with the policy set forth in 48 C.F.R.

12.212; or (b) for acquisition by or on behalf of units of the

Department of Defense, consistent with the policies set forth in

48 C.F.R. 227.7202-1 (JUN 1995) and 227.7202-4 (JUN 1995).

In the event that you receive a request from any agency of the

U.S. Government to provide Software with rights beyond those set forth above, you will notify DS SolidWorks of the scope of the request and DS SolidWorks will have five (5) business days to, in its sole discretion, accept or reject such request. Contractor/

Manufacturer: Dassault Systemes SolidWorks Corporation, 175

Wyman Street, Waltham, Massachusetts 02451 USA.

Document Number: PME-F3DDS100-ENG

Professional, and Education Products

This work contains the following software owned by Siemens

Industry Software Limited:

Portions of this software incorporate PhysX™ by NVIDIA 2006-

2010.

6,289,364; 6,563,502; 6,639,593; 6,754,382; Patents Pending.

Adobe, the Adobe logo, Acrobat, the Adobe PDF logo, Distiller and Reader are registered trademarks or trademarks of Adobe

Systems Inc. in the U.S. and other countries.

For more DS SolidWorks copyright information, see Help >

About SOLIDWORKS.

Product

Mark Adler.

The eDrawings® for Windows® software is based in part on the work of the Independent JPEG Group.

Silicon Graphics Systems, Inc.

Apple Computer Inc.

Introduction

To the Teacher. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SOLIDWORKS Tutorials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

My SOLIDWORKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Certification Exams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Training Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Educator Resources link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Course Design Philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Conventions Used in this Book . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Windows 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Use of Color . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Graphics and Graphics Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Color Schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Lesson 1: SOLIDWORKS Basics and the User Interface

What is the SOLIDWORKS Software? . . . . . . . . . . . . . . . . . . . . . . . . 8

Design Intent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Examples of Design Intent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

How Features Affect Design Intent . . . . . . . . . . . . . . . . . . . . . . . 11

File References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Object Linking and Embedding (OLE) . . . . . . . . . . . . . . . . . . . . 12

File Reference Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Opening Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Computer Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

The SOLIDWORKS User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Pull-down Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 i

Contents SOLIDWORKS 2016

Using the Command Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Adding and Removing CommandManager Tabs . . . . . . . . . . . . . 16

FeatureManager Design Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

PropertyManager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Full Path Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Selection Breadcrumbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Task Pane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Opening Labs with the File Explorer . . . . . . . . . . . . . . . . . . . . . . 20

Heads-up View Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Unselectable Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Mouse Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Keyboard Shortcuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Multiple Monitor Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

System Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Lesson 2: Introduction to Sketching

2D Sketching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Stages in the Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Saving Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Save. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Save As . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Save As Copy to Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Save As Copy and Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

What are We Going to Sketch? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Sketching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Default Planes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Sketch Entities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Sketch Geometry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Basic Sketching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

The Mechanics of Sketching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Inference Lines (Automatic Relations). . . . . . . . . . . . . . . . . . . . . 33

Sketch Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Status of a Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Rules That Govern Sketches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Design Intent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

What Controls Design Intent?. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Desired Design Intent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Sketch Relations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Automatic Sketch Relations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Added Sketch Relations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Examples of Sketch Relations . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Selecting Multiple Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 ii

SOLIDWORKS 2016 Contents

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Dimensioning: Selection and Preview . . . . . . . . . . . . . . . . . . . . . 44

Angular Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Instant 2D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Extrude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Sketching Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Exercise 1: Sketch and Extrude 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Exercise 2: Sketch and Extrude 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Exercise 3: Sketch and Extrude 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Lesson 3: Basic Part Modeling

Basic Modeling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Stages in the Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Extrusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Boss. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Cut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Fillets and Rounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Design Intent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Choosing the Best Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Choosing the Sketch Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Planes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Placement of the Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Details of the Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Standard Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Main Bosses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Best Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Sketch Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Design Intent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Sketching the First Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Extrude Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Renaming Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Boss Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Sketching on a Planar Face . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Sketching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Tangent Arc Intent Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Autotransitioning Between Lines and Arcs . . . . . . . . . . . . . . . . . 68

Cut Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

View Selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Using the Hole Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Creating a Standard Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Counterbore Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 iii

Contents SOLIDWORKS 2016

Filleting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Filleting Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Editing Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Editing a Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Selecting Multiple Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Editing Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Fillet Propagation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Rollback Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Detailing Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Settings Used in the Template . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

CommandManager Tabs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

New Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Drawing Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Tangent Edges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Moving Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Center Marks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Dimensioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Driving Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Driven Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Manipulating Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Associativity Between the Model and the Drawing . . . . . . . . . . . 96

Changing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Rebuilding the Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Exercise 4: Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Exercise 5: Cuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Exercise 6: Basic-Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Exercise 7: Base Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Exercise 8: Part Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Lesson 4: Patterning

Why Use Patterns? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Pattern Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Linear Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Flyout FeatureManager Design Tree . . . . . . . . . . . . . . . . . . . . . 118

Skipping Instances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Geometry Patterns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Performance Evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Circular Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Exercise 9: Linear Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Lesson 5: Revolved Features

Case Study: Handwheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Stages in the Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Design Intent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Revolved Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Sketch Geometry of the Revolved Feature . . . . . . . . . . . . . . . . . 129

Rules Governing Sketches of Revolved Features. . . . . . . . . . . . 131 iv

SOLIDWORKS 2016 Contents

Special Dimensioning Techniques . . . . . . . . . . . . . . . . . . . . . . . 131

Diameter Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Creating the Revolved Feature . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Building the Rim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Multibody Solids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Building the Spoke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Edge Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Chamfers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

RealView Graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Edit Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Mass Properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Mass Properties as Custom Properties . . . . . . . . . . . . . . . . . . . . 152

File Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Classes of File Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Creating File Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Uses of File Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Exercise 10: Flange. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Exercise 11: Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Lesson 6: Bottom-Up Assembly Modeling

Case Study: Universal Joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Bottom-Up Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Stages in the Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

The Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Creating a New Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Position of the First Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

FeatureManager Design Tree and Symbols . . . . . . . . . . . . . . . . . . . 164

Degrees of Freedom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Component Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

State of the component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Adding Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Insert Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Moving and Rotating Components . . . . . . . . . . . . . . . . . . . . . . . 168

Mating Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Mate Types and Alignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Mating Concentric and Coincident . . . . . . . . . . . . . . . . . . . . . . . 173

Width Mate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Rotating Inserted Components . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Using the Component Preview Window . . . . . . . . . . . . . . . . . . 180

Parallel Mate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Dynamic Assembly Motion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Displaying Part Configurations in an Assembly. . . . . . . . . . . . . 182

The Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 v

Contents SOLIDWORKS 2016

Using Part Configurations in Assemblies . . . . . . . . . . . . . . . . . . . . . 183

The Second Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Opening a Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Creating Copies of Instances . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

Component Hiding and Transparency . . . . . . . . . . . . . . . . . . . . 188

Component Properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Sub-assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Smart Mates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Inserting Sub-assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Mating Sub-assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Distance Mates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196

Unit System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196

Pack and Go . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Exercise 12: Mates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

Exercise 13: Gripe Grinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Exercise 14: Using Hide and Show Component. . . . . . . . . . . . . . . . 203

Lesson 7: Linear Static Analysis

The Analysis Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Stages in the Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Case Study: Stress in a Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Project Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

SOLIDWORKS Simulation Interface . . . . . . . . . . . . . . . . . . . . 208

SOLIDWORKS Simulation Options . . . . . . . . . . . . . . . . . . . . . . . . 210

Plot Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Preprocessing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

New Study. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Assigning Material Properties . . . . . . . . . . . . . . . . . . . . . . . . . . 214

Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Fixture Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Display/Hide Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

External Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Size and Color of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Preprocessing Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Meshing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

Standard Mesh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

Curvature Based Mesh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

Blended Curvature Based Mesh . . . . . . . . . . . . . . . . . . . . . . . . . 224

Mesh Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

Element Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Minimum Number of Elements in a Circle . . . . . . . . . . . . . . . . 225

Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

Mesh Quality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 vi

SOLIDWORKS 2016 Contents

Postprocessing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Result Plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Editing Plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Nodal vs. Element Stresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Show as Tensor Plot Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

Modifying Result Plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Other Plot Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Other Plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

Multiple Studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

Creating New Studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

Copy Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

Check Convergence and Accuracy . . . . . . . . . . . . . . . . . . . . . . . 248

Results Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Comparison With Analytical Results . . . . . . . . . . . . . . . . . . . . . 250

Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

Exercise 15: Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

Exercise 16: Compressive Spring Stiffness . . . . . . . . . . . . . . . . . . . 264

Exercise 17: Container Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

Lesson 8: Motion Simulation and Forces

Basic Motion Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

Case Study: Car Jack Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

Stages in the Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271

Driving Motion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274

Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276

Forces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Understanding Forces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Applied Forces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Force Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Force Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278

Case 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278

Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278

Case 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279

Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Plot Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Sub-Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Resizing Plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Exercise 18: 3D Fourbar Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . 288 vii

Contents SOLIDWORKS 2016

Lesson 9: Flow Simulation Analysis

Case Study: Manifold Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

Stages in the Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

Model Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293

Internal Flow Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293

External Flow Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293

Manifold Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

Lids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

Lid Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295

Manual Lid Creation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295

Adding a Lid to a Part File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295

Adding a Lid to an Assembly File . . . . . . . . . . . . . . . . . . . . . . . 296

Checking the Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298

Internal Fluid Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Invalid Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Project Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

Reference Axis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

Exclude Cavities Without Flow Conditions . . . . . . . . . . . . . . . . 307

Adiabatic Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Roughness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Computational Domain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Mesh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

Load Results Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

Monitoring the Solver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

Goal Plot Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Post-processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Scaling the Limits of the Legend . . . . . . . . . . . . . . . . . . . . . . . . 322

Changing Legend Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334 viii

Introduction

To the Teacher

SOLIDWORKS

Tutorials

SOLIDWORKS 2016

The SOLIDWORKS Education Edition - Fundamentals of 3D Design and Simulation manual is designed to assist you in teaching

SOLIDWORKS and SOLIDWORKS Simulation in an academic setting. This guide offers a competency-based approach to teaching 3D design concepts, analysis and techniques.

Qualified schools on subscription have access to the eBook at no cost to students. Contact your SOLIDWORKS Value Added Reseller to obtain access.

The SOLIDWORKS Education Edition

- Fundamentals of 3D Design and

Simulation manual also supplements the SOLIDWORKS Tutorials.

Accessing the

SOLIDWORKS

Tutorials

To start the SOLIDWORKS Tutorials, click

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Tutorials

. The SOLIDWORKS window is resized and a second window appears next to it with a list of the available tutorials. There are over 40 lessons in the SOLIDWORKS Tutorials. As you move the pointer over the links, an illustration of the tutorial will appear at the bottom of the window. Click the desired link to start that tutorial.

TIP: When you use SOLIDWORKS Simulation to perform analysis, click

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SOLIDWORKS Simulation

Tutorials to access over 50 lessons and over 80 verification problems. Click

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SOLIDWORKS Motion, and SOLIDWORKS Flow

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SOLIDWORKS 2016

Conventions

Printing the

SOLIDWORKS

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Introduction

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Introduction SOLIDWORKS 2016

My SOLIDWORKS My.SolidWorks.com is a community website to share, connect, and learn everything about SOLIDWORKS. My SOLIDWORKS learning contains additional video lessons and individual learning paths for your students.

Certification

Exams

The Certified SOLIDWORKS Associate(CSWA) - Academic program provides free certification exams for you or your students in a proctored setting. Achieving CSWA proves the fundamentals of engineering design competency. Employers verify students job ready credentials through our online virtual tester. Schools that provide two or more courses in SOLIDWORKS-based instruction can also apply to be a Certified SOLIDWORKS Professional(CSWP) - Academic

Provider.

More information and to apply can be found at www.solidworks.com/cswa-academic

Training Files

A complete set of the various files used throughout the course can be downloaded from the following website: www.solidworks.com/EDU_Fundamentals3DDesignSim

The files are organized by lesson number. The

Case Study

folder within each lesson contains the files you need when presenting the lessons. The

Exercises

folder contains any files that are required for doing the laboratory exercises.

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SOLIDWORKS Resources

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SOLIDWORKS 2016 Introduction

Prerequisites

Course Design

Philosophy

A Note About

Dimensions

Conventions Used in this Book

Students attending this course are expected to have the following:

Mechanical design experience.

Experience with the Windows

operating system.

Completed the online tutorials that are integrated in the

SOLIDWORKS software. You can access the online tutorials by clicking

Help, Online Tutorial

This course is designed around a process- or task-based approach to training. A process-based training course emphasizes the processes and procedures you follow to complete a particular task. By utilizing case studies to illustrate these processes, you learn the necessary commands, options and menus in the context of completing a task.

The drawings and dimensions given in the lab exercises are not intended to reflect any particular drafting standard. In fact, sometimes dimensions are given in a fashion that would never be considered acceptable in industry. The reason for this is the labs are designed to encourage you to apply the information covered in class and to employ and reinforce certain techniques in modeling. As a result, the drawings and dimensions in the exercises are done in a way that complements this objective.

This manual uses the following typographic conventions:

Convention

Bold Sans Serif

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Sketch1

Double lines precede and follow sections of the procedures. This provides separation between the steps of the procedure and large blocks of explanatory text. The steps themselves are numbered in sans serif bold.

Windows 7 The screen shots in this manual were made using the SOLIDWORKS software running on Windows 7. If you are not using Windows 7, or if you have a different theme setting, you may notice slight differences in the appearance of the menus and windows. These differences do not affect the performance of the software.

Introduction

Use of Color

Graphics and

Graphics Cards

Color Schemes

User Interface

Appearance

SOLIDWORKS 2016

The SOLIDWORKS user interface makes extensive use of color to highlight selected geometry and to provide you with visual feedback.

This greatly increases the intuitiveness and ease of use of the

SOLIDWORKS software. To take maximum advantage of this, the training manuals are printed in full color.

Also, in many cases, we have used additional color in the illustrations to communicate concepts, identify features, and otherwise convey important information. For example, we might show the result of a filleting operation with the fillets in a different color even though, by default, the

SOLIDWORKS software would not display the results in that way.

The SOLIDWORKS software sets a new standard with best-in-class graphics. The combination of a highly reflective material and the realism of RealView

Graphics is an effective tool for evaluating the quality of advanced part models and surfaces.

RealView Graphics is hardware

(graphics card) support of advanced shading in real time. For example, if you rotate a part, it retains its rendered appearance throughout the rotation.

Out of the box, the SOLIDWORKS software provides several predefined color schemes that control, among other things, the colors used for highlighted items, selected items, sketch relation symbols, and shaded previews of features.

We have not used the same color scheme for every case study and exercise because some colors are more visible and clear than others when used with different colored parts.

In addition, we have changed the viewport background to plain white so that the illustrations reproduce better on white paper.

As a result, because the color settings on your computer may be different than the ones used by the authors of this book, the images you see on your screen may not exactly match those in the book.

Throughout the development of the software, there have been some cosmetic User Interface changes, intended to improve visibility, that do not affect the function of the software. As a policy, dialog images in the manuals which exhibit no functional change from the previous version are not replaced. As such, you may see a mixture of current and “old”

UI dialogs and color schemes.

Lesson 1

SOLIDWORKS Basics and the

User Interface

Upon successful completion of this lesson, you will be able to:

Describe the key characteristics of a feature-based, parametric solid modeler.

Distinguish between sketched and applied features.

Identify the principal components of the SOLIDWORKS user interface.

Explain how different dimensioning methodologies convey different design intents.

Lesson 1

SOLIDWORKS Basics and the User Interface

SOLIDWORKS 2016

What is the

SOLIDWORKS

Software?

SOLIDWORKS mechanical design automation software is a featurebased, parametric solid modeling design tool which takes advantage of the easy to learn Windows graphical user interface. You can create fully associative 3D solid models with or without constraints while utilizing automatic or user defined relations to capture design intent.

The italicized terms in the previous paragraph mean:

Feature-based

Just as an assembly is made up of a number of individual piece parts, a

SOLIDWORKS model is also made up of individual constituent elements. These elements are called features.

When you create a model using the SOLIDWORKS software, you work with intelligent, easy to understand geometric features such as bosses, cuts, holes, ribs, fillets, chamfers, and drafts. As the features are created they are applied directly to the work piece.

Features can be classified as either sketched or applied.

Sketched Features: Based upon a 2D sketch. Generally that sketch is transformed into a solid by extrusion, rotation, sweeping or lofting.

Applied Features: Created directly on the solid model. Fillets and chamfers are examples of this type of feature.

The SOLIDWORKS software graphically shows you the feature-based structure of your model in a special window called the

FeatureManager® design tree. The FeatureManager design tree not only shows you the sequence in which the features were created, it gives you easy access to all the underlying associated information. You will learn more about the FeatureManager design tree throughout this course.

To illustrate the concept of featurebased modeling, consider the part shown at the right:

This part can be visualized as a collection of several different features – some of which add material, like the cylindrical boss, and some which remove material, like the blind hole.

SOLIDWORKS 2016 Lesson 1

SOLIDWORKS Basics and the User Interface

If we were to map the individual features to their corresponding listing in the FeatureManager design tree, it would look like this:

Parametric

The dimensions and relations used to create a feature are captured and stored in the model. This not only enables you to capture your design intent, it also enables you to quickly and easily make changes to the model.

Driving Dimensions: These are the dimensions used when creating a feature. They include the dimensions associated with the sketch geometry, as well as those associated with the feature itself. A simple example of this would be a feature like a cylindrical boss.

The diameter of the boss is controlled by the diameter of the sketched circle. The height of the boss is controlled by the depth to which that circle was extruded when the feature was made.

Relations: These include such information as parallelism, tangency, and concentricity. Historically, this type of information has been communicated on drawings via feature control symbols. By capturing this in the sketch, SOLIDWORKS enables you to fully capture your design intent up front, in the model.

Solid Modeling

A solid model is the most complete type of geometric model used in

CAD systems. It contains all the wire frame and surface geometry necessary to fully describe the edges and faces of the model. In addition to the geometric information, it has the information called topology that relates the geometry together. An example of topology would be which faces (surfaces) meet at which edge (curve). This intelligence makes operations such a filleting as easy as selecting an edge and specifying a radius.

Lesson 1

SOLIDWORKS Basics and the User Interface

Design Intent

SOLIDWORKS 2016

Fully Associative

A SOLIDWORKS model is fully associative to the drawings and assemblies that reference it. Changes to the model are automatically reflected in the associated drawings and assemblies. Likewise, you can make changes in the context of the drawing or assembly and know that those changes will be reflected back in the model.

Constraints

Geometric relationships such as parallel, perpendicular, horizontal, vertical, concentric, and coincident are just some of the constraints supported in SOLIDWORKS. In addition, equations can be used to establish mathematical relationships among parameters. By using constraints and equations, you can guarantee that design concepts such as through holes or equal radii are captured and maintained.

Design Intent

The final italicized term is design intent. This subject is worthy of its own section, as follows.

In order to use a parametric modeler like SOLIDWORKS efficiently, you must consider the design intent before modeling. Design intent is your plan as to how the model should behave when it is changed. The way in which the model is created governs how it will be changed.

Several factors contribute to how you capture design intent:

Automatic (sketch) Relations

Based on how geometry is sketched, these relations can provide common geometric relationships between objects such as parallel, perpendicular, horizontal, and vertical.

Equations

Used to relate dimensions algebraically, they provide an external way to force changes.

Added Relations

Added to the model as it is created, relations provide another way to connect related geometry. Some common relations are concentric, tangent, coincident, and collinear.

Dimensioning

Consider your design intent when applying dimensions to a sketch.

What are the dimensions that should drive the design? What values are known? Which are important for the production of the model? The way dimensions are applied to the model will determine how the geometry will change if modifications are made.

Consider the design intent in the following examples.

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