AUTODESK INVENTOR 11. 3D Curves, Sketches, and Construction Geometry. Autodesk Training Courseware (AOTC)

Transcription

1 AUTODESK INVENTOR 11 3D Curves, Sketches, and Construction Geometry Official Autodesk Training Courseware (AOTC) A June 2006

2 Copyright 2006 Autodesk, Inc. All rights reserved. This publication, or parts thereof, may not be reproduced in any form, by any method, for any purpose. AUTODESK, INC., MAKES NO WARRANTY, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE REGARDING THESE MATERIALS, AND MAKES SUCH MATERIALS AVAILABLE SOLELY ON AN AS-IS BASIS. IN NO EVENT SHALL AUTODESK, INC., BE LIABLE TO ANYONE FOR SPECIAL, COLLATERAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH OR ARISING OUT OF PURCHASE OR USE OF THESE MATERIALS. THE SOLE AND EXCLUSIVE LIABILITY TO AUTODESK, INC., REGARDLESS OF THE FORM OF ACTION, SHALL NOT EXCEED THE PURCHASE PRICE OF THE MATERIALS DESCRIBED HEREIN. Autodesk, Inc., reserves the right to revise and improve its products as it sees fit. This publication describes the state of this product at the time of its publication, and may not reflect the product at all times in the future. Autodesk Trademarks The following are registered trademarks of Autodesk, Inc., in the USA and other countries: 3DEC (design/logo), 3December, 3December.com, 3D Studio, 3D Studio MAX, 3D Studio VIZ, 3ds Max, ActiveShapes, Actrix, ADI, AEC-X, Alias, Alias (swirl design/logo), Alias Wavefront (design/logo), ATC, AUGI, AutoCAD, AutoCAD LT, Autodesk, Autodesk Envision, Autodesk Inventor, Autodesk Map, Autodesk MapGuide, Autodesk Streamline, Autodesk WalkThrough, Autodesk World, AutoLISP, AutoSketch, Backdraft, Bringing information down to earth, Buzzsaw, CAD Overlay, Can You Imagine, Character Studio, Cinepak, Cinepak (logo), Civil 3D, Cleaner, Combustion, Constructware, Create>what s>next (design/logo), DesignStudio, Design Studio (design/logo), Design Your World, Design Your World (design/ logo), EditDV, Education by Design, FBX, Filmbox, Gmax, Heidi, HOOPS, HumanIK, i-drop, IntroDV, Kaydara, Kaydara (design/logo), Lustre, Maya, Mechanical Desktop, ObjectARX, Open Reality, PortfolioWall, Powered with Autodesk Technology (logo), ProjectPoint, RadioRay, Reactor, Revit, SketchBook, Visual, Visual Construction, Visual Drainage, Visual Hydro, Visual Landscape, Visual Roads, Visual Survey, Visual Toolbox, Visual Tugboat, Visual LISP, Voice Reality, Volo, WHIP!, and WHIP! (logo). The following are trademarks of Autodesk, Inc., in the USA and other countries: AliasStudio, AutoCAD Learning Assistance, AutoCAD Simulator, AutoCAD SQL Extension, AutoCAD SQL Interface, AutoSnap, AutoTrack, Built with ObjectARX (logo), Burn, CAiCE, Cinestream, Cleaner Central, ClearScale, Colour Warper, Content Explorer, Dancing Baby (image), DesignCenter, Design Doctor, Designer s Toolkit, DesignKids, DesignProf, DesignServer, Design Web Format, DWF, DWG, DWG Linking, DWG (logo), DWG TrueConvert, DWG TrueView, DXF, Extending the Design Team, GDX Driver, Gmax (logo), Gmax ready (logo), Heads-up Design, Incinerator, LocationLogic, MotionBuilder, ObjectDBX, Plasma, PolarSnap, Productstream, RealDWG, Real-time Roto, Render Queue, ShowCase, StudioTools, Subcontractor Desktop, Topobase, Toxik, Visual Bridge, Visual Syllabus, and Wiretap. Autodesk Canada Co. Trademarks The following are registered trademarks of Autodesk Canada Co. in the USA and/or Canada and other countries: Discreet, Fire, Flame, Flint, Flint RT, Frost, Glass, Inferno, MountStone, Riot, River, Smoke, Sparks, Stone, Stream, Vapour, Wire. The following are trademarks of Autodesk Canada Co., in the USA, Canada, and/or other countries: Backburner, Multi-Master Editing. Third Party Trademarks All other brand names, product names, or trademarks belong to their respective holders. Third Party Software Program Credits 2D DCM UGS Corp. All rights reserved. ACIS Spatial Corp. CDM UGS Corp. All rights reserved. COPRA MetalBender data M Software GmbH. All rights reserved. dbase databased Intelligence., Inc. All rights reserved. FLEXlm Macrovision Corp. All rights reserved. HTML Help Microsoft Corp. All rights reserved. Internet Explorer Microsoft Corp. All rights reserved. libpng Glenn Randers-Pehrson. Contributing Authors: John Bowler, Kevin Bracey, Sam Bushell, Simon-Pierre Cadieux, Andreas Dilger, Magnus Holmgren, Tom Lane, Dave Martindale, Eric S. Raymond, Greg Roelofs, Guy Eric Schalnat, Paul Schmidt, Tom Tanner, Cosmin Truta, Willem van Schaik, Gilles Vollant, and Tim Wegner. Macromedia Flash Player Adobe Systems, Inc. All rights reserved. Microsoft SQL Server Microsoft Corp. All rights reserved. Objective Grid Quovadx, Inc. All rights reserved. Portions Microsoft Corp. Portions International TechneGroup, Inc. All rights reserved. RSA Data Security, Inc., MD5 Message-Digest Algorithm RSA Data Security, Inc. All rights reserved. SafeCast Macrovision Corp. All rights reserved. SMLib IntegrityWare, Inc., and Solid Modeling Solutions, Inc. All rights reserved. TList Bennet-Tec Information Systems, Inc. All rights reserved. Typefaces 1992 Bitstream, Inc. All rights reserved. Typefaces 1992,1996 Payne Loving Trust. All rights reserved. uuencode/uudecode 1983 Regents of the University of California. All rights reserved.

3 Visual Basic (logo) Microsoft Corp. All rights reserved. Visual Basic Microsoft Corp. All rights reserved. Windows NetMeeting Microsoft Corp. All rights reserved. Wise for Windows Installer Wise Solutions, Inc. All rights reserved. zlib Jean-loup Gailly and Mark Adler. Objective Grid control licensed from Quovadx, Inc. Portions of this software licensed from UGS Corp. Portions of this software are based on the work of the Independent JPEG Group. This software contains Macromedia Flash Player software by Adobe Systems, Inc. TList control licensed from Bennet-Tec Information Systems, Inc. XpressFreeLib, XpressQuantumTreeList, XpressSideBar, XtraBars for XtraGrid, XtraGrid, and XtraTreeList for XtraGrid controls licensed from Developer Express, Inc. All other brand names, product names, or trademarks belong to their respective holders. GOVERNMENT USE Use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in FAR (Commercial Computer Software-Restricted Rights) and DFAR (Rights in Technical Data and Computer Software), as applicable.

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5 Contents Introduction vii Chapter 1: Advanced 2D Sketching Lesson: Capturing Design Intent Using Construction Geometry Overview About Construction Geometry Guidelines for Construction Geometry Creating and Using Sketch Points Creating and Using Driven Dimensions Exercise: Use Points and Driven Dimensions Lesson: Sharing Sketches Overview About Shared Sketches Sharing Sketches Exercise: Share a Sketch Lesson: Creating 2D Splines Overview About 2D Splines in Layout Sketches Working with Imported Images Best Practices for Creating 2D Splines Exercise: Use 2D Splines in a Layout Sketch Lesson: Editing 2D Splines Overview About Analyzing 2D Splines Controlling 2D Spline Shape Using Spline Handles Exercise: Edit a 2D Spline Chapter Summary v

6 Chapter 2: Creating 3D Sketches Lesson: Creating 3D Sketches Overview About 3D Sketches D Sketch Environment Guidelines for Creating 3D Sketches Applying 3D Sketch Constraints Creating 3D Sketches Using Work Points Creating 3D Lines Creating 3D Bends Editing 3D Sketch Geometry with 3D Move/Rotate Exercise: Create 3D Sketches Lesson: Using Existing Edges in a 3D Sketch Overview About Included Geometry Guidelines for Using Existing Edges in 3D Sketches Including Existing Edges Editing and Moving Included Geometry Exercise: Use Included Geometry Chapter Summary Chapter 3: Complex 3D Curves Lesson: Projecting and Intersecting Geometry Overview About Intersecting Geometry Creating Curves by Intersecting Sketches or Surfaces Projecting Curves onto Surfaces Exercise: Create 3D Intersection Curves Exercise: Project Curves onto a Surface Lesson: Creating and Using 3D Splines Overview About Independent 3D Splines Analyzing and Editing 3D Splines Exercise: Create and Edit an Independent 3D Spline Chapter Summary Appendix A: Additional Resources Courseware from Autodesk Autodesk Authorized Training Centers Autodesk Certification Autodesk Consulting Autodesk Developer Network Product Support vi Contents

7 Introduction Welcome to the Autodesk Inventor 11: 3D Curves, Sketches, and Construction Geometry Autodesk Official Training Courseware (AOTC), a training course for use in Authorized Training Center (ATC ) locations, corporate training settings, and other classroom settings. Although this courseware is designed for instructor-led courses, you can also use it for self-paced learning. The courseware encourages self-learning through the use of the Autodesk Inventor 11 Help system. This introduction covers the following topics: Course objectives Prerequisites Using this courseware CD contents Completing the exercises Installing the exercise data files from the CD Projects Notes, tips, and warnings Feedback This courseware is complementary to the software documentation. For detailed explanations of features and functionality, refer to the Help system in the software. Course Objectives After completing this course, you will be able to: Use construction geometry to capture design intent and share sketches on existing features to create additional sketched features. You will also be able to use 2D splines for part feature paths and profiles, and use control points, control handles, and sketch constraints to control the shape of those splines. Create 3D curves in the 3D sketch environment. You will also be able to create, constrain, and modify those 3D sketches. Create complex 3D curves by intersecting and projecting geometry. You will also be able to create and use 3D splines as paths and guides to help control the shape of complex features. vii

8 Prerequisites This course is designed for experienced Autodesk Inventor users who want to learn the fundamentals and recommended workflows for creating complex 2D and 3D sketches and 3D curves. It is recommended that you have: Completed the Autodesk Inventor 11 Parametric Part Design course or have an equivalent understanding of parametric part design with Autodesk Inventor 11. A basic understanding of assembly design. A working knowledge of Microsoft Windows 2000 or Microsoft Windows XP. Using This Courseware The lessons are independent of each other. However, it is recommended that you complete these lessons in the order that they are presented unless you are familiar with the concepts and functionality described in those lessons. Each chapter contains: Lessons Usually two or more lessons in each chapter. Exercises Practical, real-world examples for you to practice using the functionality you have just learned. Each exercise contains step-by-step procedures and graphics to help you complete the exercise successfully. CD Contents The CD attached to the back cover of this book contains all the data and drawings you need to complete the exercises in this course. Completing the Exercises You can complete the exercise in two ways: using the book or online. Using the book Follow the step-by-step exercises in the book. Online Click the Autodesk Inventor 11 3D Curves AOTC icon on your desktop, installed from the CD, and follow the step-by-step exercises online. The online exercises are the same as those in the book. The online version has the advantage that you can concentrate on the screen without having to glance down at your book. viii Introduction

9 After launching the online exercises, you might need to alter the size of your application window to align both windows. Installing the Exercise Data Files from the CD To install the data files for the exercises: 1. Insert the courseware CD. 2. When the setup wizard begins, follow the instructions on screen to install the data. 3. If the wizard does not start automatically, browse to the root directory of the CD and double-click Setup.exe. Unless you specify a different folder, the exercise files are installed in the following folder: C:\Documents and Settings\All Users\Autodesk Learning\Inventor 11\3D Curves After you install the data from the CD, this folder contains all the files necessary to complete each exercise in this course. You can also use the Autodesk Learning shortcut on your desktop to quickly access the datasets for each AOTC course on your system. Projects Most engineers work on several projects at a time, and each project might consist of a number of files. You can use Autodesk Inventor projects to organize related files and maintain links between files. This courseware has a project file that stores the paths to all the files that are related to the exercises. When you open a file, Autodesk Inventor uses the paths in the current project file to locate other required files. To work on a different project, you make a new project active in the Project Editor. Follow the instructions in the courseware to locate the project file for the course and make it active. Introduction ix

10 Notes, Tips, and Warnings Throughout this courseware, notes, tips, and warnings are called out for special attention. Notes contain guidelines, constraints, and other explanatory information. Tips provide information to enhance your productivity. Warnings provide information about actions that might result in the loss of data, system failures, or other serious consequences. Feedback We always welcome feedback on Autodesk Official Training Courseware. After completing this course, if you have suggestions for improvements or if you want to report an error in the book or on the CD, please send your comments to x Introduction