Autodesk Inventor 11 Test Drive

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Autodesk Inventor 11

Autodesk Inventor 11 Hands-on Test Drive

Autodesk, Inc.111 McInnis ParkwaySan Rafael, CA 94903, USA

Tel.: +1/415-507 5000Fax: +1/415-507 5100

Autodesk Asia PTE Ltd.391B Orchard Road#12-06 Ngee Ann City, Tower BSingapore 238874SingaporeTel.: +65/6461-8100Fax: +65/6735-5188

Autodesk (Europe) S.A.20, route de Pr-BoisCase Postale 1894CH-1215 Geneva 15Switzerland

Tel.: +41/22-929 75 00Fax: +41/22-929 75 01

Autodesk Limited1 Meadow Gate AvenueFarnboroughHampshire GU14 6FGUnited KingdomTel.: +44/1252 456600Fax: +44/1252 456601

www.autodesk.com


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Copyright 2006 Autodesk, Inc.

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Third Party Software Program Credits2D DCM 1989-2006 UGS Corp. All rights reserved.ACIS 1989-2001 Spatial Corp.CDM 19992006 UGS Corp. All rights reserved.

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Autodesk Inventor

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Autodesk Inventor

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Chapter 1: Creating Your First 3D Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Chapter 2: Creating a Production Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Chapter 3: Completing the Part Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Chapter 4: Using AutoCAD Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Chapter 5: Assembly Basics Creating & Assembling Components . . . . . . 69

Chapter 6: Assembly Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Chapter 7: Working with Assembly Configurations . . . . . . . . . . . . . . . . . . .107

Chapter 8: Performing Stress Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

Chapter 9: Designing Welded Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . .123

Chapter 10: Creating a Sheet Metal Design . . . . . . . . . . . . . . . . . . . . . . . . . . .131

Chapter 11: Photo-Realistic Rendering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Chapter 12: Designing Tubes, Pipes, and Hoses . . . . . . . . . . . . . . . . . . . . . . .145

Chapter 13: Designing Cables and Wire Harnesses . . . . . . . . . . . . . . . . . . . .159

Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171


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Introduction

Table of Contents

Welcome to the Autodesk Inventor 11 Hands-on Test Drive . . . . . . . . . . . . . . . . . . . 3

Installing Your 30-Day Autodesk Inventor Test Drive . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Setting up Your System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Getting Familiar with the User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11


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Installing Your 30-Day Autodesk Inventor Test Drive

System Requirements

These are the recommended system requirements for the Autodesk Inventor 11 Test Drive 30-day trial software

version:

Windows 2000 Professional SP4

Windows XP Professional SP1 & SP2

Windows XP Professional x64 Edition

Recommended: Part and assembly design (less than 1000 parts)

Intel Pentium 4, Xeon, or AMD Athlon 2.0 GHz or better processor

1 GB+ RAM

128+ MB DirectX or OpenGL Capable Workstation Class Graphics Card

3.5+ GB Free Disk Space

For the latest system requirements, please visit www.Autodesk.com.

Note: Less capable machines can run Autodesk Inventor 11, but the results will be less than ideal.

Installing the Autodesk Inventor Software 30-day Trial Version

Follow these steps to install your 30-day Autodesk Inventor software trial.

Prepare for software installation:

1. Close all open applications.

2. Insert the Autodesk Inventor 11 Test Drive CD disk 1 of 1 (in the back cover of this booklet) into the CD-ROMdrive and follow the onscreen instructions.

Note: During the installation process, follow the on-screen instructions to insert additional disks asnecessary.

3. If the CD does not start automatically, go to D:\ (where D is the CD-ROM drive), and double-click the file

setup.exe.


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4. On the Install page, follow Step 1: ReviewProduct Documentation. Click System Requirements to review the

recommended and minimum system

requirements.

Click Graphics Card Driver Update toreview important graphics card and driver

information.

Click Autodesk Inventor Professional 11Readme to read important applicationinformation.

Install Autodesk Inventor software:

1. On the Install page under Step 2, clickInstallAutodesk Inventor Professional 11 (30-day

Trial Version).

2. On the Welcome Wizard page, clickNext.

3. Read the license agreement; confirm byclicking I accept the license agreement andthen clickNext.

4. On the Destination Folder page, clickNext toaccept the default destination folder, or clickBrowse to define an alternate location. Wehighly recommend you install to the defaultlocation.

5. On the Products page, clickNext.

6. On the Product Pre-Installation Checks page,clickNext.

7. On the Pre-Installation Checks results page,clickNext.

8. On the Installing Specified AutodeskProducts page, clickInstall.


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9. When the installation is complete, clickNext.

10.Review the Readme and Getting Startedguides and then clickFinish.

Installing the Hands-on Test Drive Sample Files

After installing the Autodesk Inventor trial version, copy the sample files from the CD to your computer.

On the Install page, clickInstall Hands-on Test Drive Sample Files and follow the onscreen instructions.

Note: We highly recommend installing the files in the default folder C:\Inventor_R11_TestDrive.

Setting up Your System

In order to have the most productive experience with the Autodesk Inventor Hands-on Test Drive, werecommend you review your computer hardware settings and configure your Autodesk Inventor softwaredisplay to ensure an optimal software experience.


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Optimizing Your System Graphics Settings

Autodesk Inventor is a graphically rich design application. In order to maximize behavior and performance,

optimize your computers graphics display.

1. Right-click in the Windows desktop background and choose Properties.

2. In the Display Properties dialog, click the Settings tab.

3. In the Color quality section of the dialog, select Highest (32 bit) and then clickOK.

Using a Compatible Graphics Card

Autodesk Inventor software is a high-performance 3D modeling application that uses the 3D rendering

features of your graphics card to properly display the parts and assemblies on your computer screen. It isimportant to make sure your computer has both a compatible graphics card and the correct driver before

using Autodesk Inventor software. To find information about your graphics card and download the correctdrivers, visit www.inventor-certified.com/graphics and choose Card Certification.

Starting Autodesk Inventor Software

Start Autodesk Inventor:

1. Double-click the Autodesk Inventor 11 application icon on the desktop.

The Authorization dialog box is displayed with a reminder of the number of days remaining for your trial

version of Autodesk Inventor.

2. Select the Run the product option

and then clickNext.

The Getting Started page is displayed.

This page offers many useful tools forlearning how to work with AutodeskInventor software, including what is

new in the latest release, help for theAutoCAD user, tutorials, and so on.

3. Click Cancel in the lower-right cornerof the Open dialog to close thiswindow.

You have opened the Autodesk

Inventor software application.


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Setting the Default Color Scheme

Autodesk Inventor software offers many different color schemes. For your first experience using Autodesk

Inventor, we recommend using a simple color scheme with a white background.

1. From the Tools menu, choose Application

Options.

2. On the Colors tab, choose the Presentationcolor scheme.

3. For those using less powerful machines orlaptop systems, we also recommend that youclear the Show Reflections and Textures checkbox.

4. Click Apply and then clickClose to close theOptions dialog box.

Getting Started

Using this Booklet

Although you can use this Test Drive at your own pace, these materials are intended for use in an Autodesk

Authorized Reseller-led workshop environment. To optimize learning, your Reseller will guide you through theexercises. This Test Drive is intended to give you an overview of 3D solid modeling and illustrate how AutodeskInventor software can help you gain design efficiencies by moving to 3D.

You should be able to complete all of the exercises in this booklet in approximately 6 to 8 hours. Forconvenience, each chapter begins with all the files necessary for the given exercise. If necessary, this allows you

to move to the next chapter without requiring that you complete the current exercise.

For more information or assistance using your Autodesk Inventor Hands-on Test Drive, contact your Autodesk

Authorized Reseller.


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Helping the Project Team Design a Go-Cart

As your design task, you will help design a

go-cart.

Your work will focus on the rear-axle

assembly and begin with the creation of a part whichis the carrier for the sprocket.

You will then help finish the rear-axle assembly and create detailed

drawings of your part andassembly.

You will also learn how the designteam uses the configurationsfunctionality of Autodesk Inventor

to design an entire family of go-cart designs. Using the built-inStress Analysis functionality, you

will learn how to validate thestrength of your 3D carrier part.

Also, you design a weldedassembly and create a sheet metalpart.

You complete the go-cart designby creating a photo-realisticrendering of the design.

In addition to the design of the go-cart, you will complete a skid assembly by adding a pipe, rigid tube, andhose run to the assembly.


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In the final design exercise you create the wires, harness, and corresponding nailboard drawing of a pcbenclosure assembly.

Starting with a Project

Autodesk Inventor uses project files to organize and manage the multiple files associated with a design. You willuse one project file, provided for you, for all of the exercises in this Hands-on Test Drive.

Activate the project:

1. From the File menu,

choose Projects.

2. In the project window,

right-click and chooseBrowse.

3. Browse to the folder

where youdownloaded the

sample files (defaultwasC:\Inventor_R11_TestD

rive), select the file R11Test Drive.ipjand thenclickOpen.

4. If a check mark doesnot display next to the

R11 Test Drive entry, then in the project window, double-clickR11 Test Drive to activate the project.


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Opening Your First Assembly

To gain familiarity with the Autodesk Inventor user

interface, open a finished version of the go-cart rear axleassembly:

1. In the What to Do area of the Open dialog, clickOpen.

2. In the Open dialog, browse to the Intro folder anddouble-clickRear_Axle_Assy.iam .

A finished version of the go-cart rear axle assembly is now

open.

Getting Familiar with the User Interface

Now that you have started Autodesk Inventor and set theproject file, you will gain familiarity with the user

interface. You can move and resize the various aspects ofthe user interface to your liking.

Menu Bar

At the top of the screen is the menu bar (arrow 1), whichincludes menus and important commands. You may

notice that the menu bar is similar to a standard Windowsmenu. For example, on the File menu you find tools likeOpen, Save, Print, and Exit. On the View menu, you findtools for model and view orientation like Rotate, Pan, and

Zoom.

Standard Toolbar

Below the menu bar is the Autodesk Inventor Standard

toolbar (arrow 2) containing commonly used icons. You

can use the tools on this toolbar to perform commontasks, including Open, Save, Sketch, Return, Rotate, Pan,

and Zoom.

Panel Bar

The Panel bar (arrow 3) includes specialized design tools

that automatically change to reflect the environment inwhich you are working. The commands change based on whether you are working in Sketch, Part, Assemblymode, etc. When you finish sketching, the Panel bar automatically changes to offer the tools to convert your

sketch to a feature.


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The Panel bar offers two modes: Learning and Expert. Learning mode is used by default. It displays the tool iconswith descriptions and provides a good introduction to all of the commands. Typically, when using Learningmode, you will need to scroll to find all the commands and tools available to that design environment. Once you

become familiar with the icons associated with each tool, you can use the Expert mode to display only the icons.

To change the Panel bar to Expert mode, you click the title bar or right-click the Panel bar background and thenchoose Expert.

The Browser

The browser (arrow 4), by default, is located below the Panel bar. The browser displays essential informationabout your 3D designs. When working with an assembly, the browser displays the hierarchy of the

subassemblies and components. When designing a part, the browser shows the features that you have added tothe model.

Changing the View Orientation

To change to the default isometric view of the go-cart assembly:

In the graphics window, right-click and choose Isometric View (F6).

The view orientation rotates to the default isometric view.

To return to the previous view orientation:

In the graphics window, right-click and choose Previous View (F5).

Tip: You can also use the shortcut key (F5) to return to the previous view orientation.

To magnify your view of the sprocket and right wheel:

1. On the Standard toolbar, click the Zoom Window tool.

2. In the graphics window, click once near the upper-leftof the sprocket and then click again near the lower-right of the wheel.


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Your view of the rear axle assembly should be similar tothe image shown on the right. The image shows thecarrier, sprocket, axle and other components you will

create in this hands-on Test Drive.


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Chapter 1: Creating Your First 3D Part

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Table of Contents

In This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

The Autodesk Inventor Advantage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Starting a New Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Creating Your First Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Adding Dimensions to Your Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Finishing the Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Creating Your First Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Creating Another Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Constraining Your Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Creating Another Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Creating a Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Saving Your Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31


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In This Chapter

Your first step in the go-cart design is to create a

new 3D component for the rear axle assembly. Thepart you will design is a carrier for the sprocket. Thefinished carrier is shown on the right. You will learn

the fundamentals of creating 3D solid modelssketching profiles, turning those profiles into solidgeometry, and adding features.

The Autodesk Inventor Advantage

Improving on 2D drafting tools, the 3D modelingenvironment of Autodesk Inventor provides arealistic representation of your design. Instead of

using lines, arcs, and circles to represent one view of your design, Autodesk Inventor builds a model from apalette of features that describe the shape of your product in 3D. Placing these 3D features is analogous tohow manufacturing processes shape and create parts through extruding, milling, turning, or casting (3D

features can either add or remove material). These features interact together to define the whole part. Inaddition, since they each may be modified through dimensional changes or by repositioning, it is easy andintuitive to later make predictable changes to your design. Using Autodesk Inventor for 3D you're able to see

your design come to lifeallowing you to more easily visualize the solutions to your engineering tasks.

Starting a New Part

Create a new part using a standard template:

1. On the Standard toolbar, clickNew .

2. In the Open dialog, click the Metric taband then double-click the Standard

(mm).ipt icon to create a new

standard part.

Note: With Autodesk Inventor, you cancreate parts independently or in thecontext of an assembly. For the purposes

of this project, design your first partindependently.


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Creating Your First Sketch

Begin your part design by creating a sketch of the 2-dimensional profile of what will be the base feature of the

carrier part. The first feature of this part is cylindrical, so start by sketching two concentric circles:

1. In the 2D Sketch Panel, click the Center Point Circle tool.

2. Move the cursor into the sketch area.

The cursor becomes a yellow point.

3. Move the cursor over the intersection of the main axes.

4. Click to define the center point of the first circle and then move the cursor to the upper right.

As you move the cursor to the right, a dynamic circle displays and the radial value displays in the lower-rightcorner of the Autodesk Inventor window.

5. Continue moving the cursor to the upper right until the radial value is about 25.

6. Click to create the first circle.

The Center Point Circle tool is still active, enabling you to create another circle.

Create a second circle, concentric to the first:

1. Move the cursor back to the center of the

existing circle.

As you move the cursor over the center point ofthe existing circle, the yellow point turns to green

and a coincident symbol displays.

2. Click to define the center point of the second

circle and then move the cursor to the upperright.


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3. Continue moving the cursor to the right until thedynamic circle is slightly larger than the first circle.Click to define the circle.

4. In the graphics window, right-click and choose Doneto quit the Center Point Circle tool.

You have just created the basic contour of your first

sketch.

Note: At this point, your sketch can be considered

complete. With Autodesk Inventor, you can designconceptually and do not need to fully dimension yoursketches.

Adding Dimensions to Your Sketch

Next, you fully define the size of your sketch by adding dimensions. Autodesk Inventor provides improvement

over AutoCAD dimensioning tools by using a single command to generate many different dimension types.

Add dimensions to your sketch:

1. On the Panel bar, scroll down and click the General Dimension tool.

2. Move the cursor over the edge of the inner circle.

A diameter dimension symbol displays next to the cursor.

Add a diameter dimension:

1. Select the inner circle and move the cursor to the

upper right. Click to place the dimension.

The value of your dimension will be different. The

General Dimension tool remains active, enabling youto continue adding dimensions.

2. Select the edge of the outer circle, move the cursor tothe lower right of the first dimension and then clickto place the second dimension.


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Defining Dimension Values

Next, modify the dimensions to make them precise values.

The dimensions in Autodesk Inventor are more than justtext, they are values that drive the size of the geometry.

Modify the dimensions:

1. Select the diameter dimension on the inner circle.

A dialog displays highlighting the current value of thedimension.

2. Type a value of50 and click the green check mark

on the right of the dialog (or press Enter) to accept thatvalue.

Defining Dimension Values Using Formulas

Ensuring proper thickness of the part design requires that you define a dimensional offset between the two

circles. With Autodesk Inventor, you can create mathematical relationships between dimensions.

Specify the value for the outer diameter dimension:

1. With the General Dimension tool still active, select the diameter dimension on the outer circle.

2. With the value of the dimension highlighted in the Edit Dimension dialog, select the 50 diameter dimensionof the inner circle.

The parameter d0 displays in the Edit Dimensiondialog.

3. Type +20 after the d0 entry so that the value readsd0+20.

4. Click the green check mark to accept this value

and close the Edit Dimension dialog.


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Test the formula for the outer dimension:

1. Select the 50 dimension.

2. In the dialog, type a value of70 and click the green

check mark to accept that value.

Both circles update to reflect the new values.

3. Press the Esc key to quit the General Dimension tool.

Creating Driven Dimensions

Because you are early in the design phase of the carrier part, you will want the ability to change the size of the

inner diameter later in the design process. You will change the inner diameter dimension value to be driven.

Create a driven dimension to show the diameter of the hub:

1. In the graphics window, click the 70 dimension.

2. With the dimension selected, on the right sideof the Standard toolbar, click the Driven

Dimension tool to toggle the defaultdimension style to driven.

Because the dimension style is driven, notice

you cannot change the value in the dialog.


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Finishing the Sketch

Finish the sketch:

1. Change to an isometric view by right-clicking andchoosing Isometric View in the graphics window.

2. In the graphics window, right-click and then chooseFinish Sketch.

Notice that the grid is no longer displayed because it isneeded only during sketching. Also notice on the Panel

bar that the sketch commands have been replaced bythe 3D part modeling feature tools.

Creating Your First Feature

For this portion of the design, use the Extrude tool.

1. On the Panel bar, click the Extrude tool.

The Extrude dialog displays.

2. In the graphics window, identify the portion ofthe sketch you want to extrude by selecting the

area between the two circles.

3. Click the Centered option in the Extrudedialog.

A preview of the 3D model displays.

4. Move the cursor to an edge of the preview anddrag the extrusion to a slightly larger height.

Notice that the value in the Extrude dialog automatically updates. You can also specify an exact distance.

5. In the Extrude dialog, highlight the current distance value, type 40, and clickOK to close the dialog andcreate the extrusion feature.


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Creating Another Sketch

To create another sketch, first define the orientation of

the sketch plane. For the flange, use the same plane thatyou used to define the previous extrusion feature:

1. In the browser, click the plus sign(+) in front of Origin.

The names of the principal orientation planes and axes

display.

2. In the browser, right-click the name XY Plane and

choose New Sketch.

Notice that several elements in the browser have a

gray background. The browser uses shading toidentify active and inactive elements. In this case,Sketch2 is active.

Viewing Normal to the Sketch Plane

Before you start to sketch the geometry for the flange,

change the orientation of your view to be perpendicular tothe sketch plane:

1. On the Standard toolbar, click the Look At tool.

2. In the graphics window, select the top face of the part.

Changing the Default Sketch Behavior

At any time, you can change the default sketching behavior in Autodesk Inventor. Next, you will change the

display settings of the grid and specify that you want to edit the value of a dimension when it is created.

Change the default 2D sketching behavior:

1. From the Tools menu, choose Application Options.

2. Click the Sketch tab.


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3. Clear the Minor Grid Lines and Axes checkboxes.

4. Select the Edit dimension when created

check box.

5. Click OK to close the Options dialog.

Notice that the grid display has changed and

the axes are no longer visible on the sketch

plane.

Referencing Existing Geometry

The flange must maintain a geometric relationship with the existing solid. You can easily use existing geometryby referencing existing dimensions or by projecting geometry onto the current sketch plane.

Project the outer circular edge of the solid:

1. On the Panel bar, scroll down and click the Project Geometry tool.

2. In the graphics window, select the outer edge of your 3Dpart.

A circle and centerpoint are created on the sketch plane.This geometry is fully associative to the outer edge of the

part. That means this geometry automatically updates whenthe part edge changes.

3. Right-click in the graphics window and chose Done to quitthe Project Geometry tool.

Sketching the Flange

Next, sketch a line that defines the shape of the flange:

1. On the Panel bar, click the Line tool.


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2. In the graphics window, move the cursor to theupper right of the projected edge, as shown in the

image on the right. A coincident symbol

displays next to the cursor.

3. Click to define the start point of the line.

4. Move the cursor to the right and slightly down, asshown in the image on the right and then click to

define the second point of the line

While using the Line tool, you can also create arcs.Create an arc that is tangent to the previous line

segment:

1. Pause your cursor at the end of the line, then click,

hold, and drag the cursor to see a dynamic preview

of your arc.

Note: To view a Help video on arc creation, right-click

in the graphics window and choose How To. In theShow Me dialog, in the Sketch Line section, choose Arcs and then clickTangent.

2. Move the cursor directly below the start point of thearc, as shown on the right and then release themouse button to create the arc.

Continue sketching the final line segment:

1. Move the cursor over the lower right of the projected

edge until a coincident symbol displays next to

the cursor and a tangent symbol displays next tothe endpoint of the arc.

2. When both symbols display, click to define theendpoint of the final line segment.

Note: An additional dotted line may display while

sketching this final line segment. Dotted referencelines display when the cursor is aligned with othergeometry in the sketch. In this case, the cursor may

be vertically aligned with the start point of the firstline segment.

3. In the graphics window, right-click and choose Done

to quit the Line tool.


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Constraining Your Sketch

Creating Construction Geometry

Construction geometry often simplifies the process of constraining a sketch. You will define sketched geometry

as construction geometry.

Create a horizontal construction line:

1. On the Panel bar, click the Line tool.

2. On the right side of the Standard toolbar, click the

Construction tool to turn on construction mode.

3. In the graphics window, select the center point of the

hub to define the start point of the line.

4. Move the cursor to the right of the arc on the flange. A

horizontal symbol displays next to the cursor when

the preview of the line is nearly horizontal.

5. With the horizontal symbol displayed, click to define

the endpoint of the construction line.

A horizontal dashed line is created. Notice the difference in line type and color of the construction line.

6. In the graphics window, right-click and choose Done to quit the Line tool.

7. On the Standard toolbar, click the Construction tool to turn off construction mode.

Constraining the Flange

The center points of the hub and the arc on the flange must be aligned horizontally. You will control thisbehavior by making the center point of the arc coincident with the horizontal construction line.

Align the arc on the flange with the construction line:

1. On the Panel bar, click the down arrow next to the

Perpendicular tool.

The tools in this list are all the constraint tools.

2. Click the Coincident tool.

3. Select the center point of the arc and then select theconstruction line.


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4. The center point of the arc adjusts to become coincident with the construction line.

The two angled lines adjacent to the arc need to be symmetrical about the construction line. To make the twolines symmetrical:

1. On the Panel bar, click the down arrow

next to the Coincident tool.

2. Click the Symmetric tool.

3. Click the top angled line, the bottom

angled line and then select the constructionline.

The two angled lines are now symmetrical

about the construction line.

Displaying Existing Constraints

At any time while you are sketching, you can display the constraints on your sketch.

Display the constraints:

1. On the Panel bar, click the Show Constraints

tool.

2. Select the arc.

The constraint icons display, showing all theconstraints associated with the arc.

Highlight the geometry associated with eachconstraint:

1. Move the cursor over the constraint icons.

Both sketch objects associated with that constraint are highlighted in the sketch.


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2. Click the X to the right of the constraint icons toclose the constraints display.

3. Press Esc (or right-click and choose Done) to quit

the Show Constraints tool.

Finishing the Sketch with Dimensions

Next, finish constraining the size of the sketch bycreating dimensions:

1. On the Panel bar, click the General Dimension

tool.

Note: Ensure the Driven Dimension tool on the Standard toolbar is not active.

2. Select the arc and place the dimension to the upper right of the arc.

Because you changed the default behavior for dimensioning, the Edit Dimension dialog displays, enabling

you to define the value.

3. In the dialog, type 6 and then click the green

check mark to accept that value.

Create an angular dimension between the two

angled lines:

1. Select the top angled line, select the bottom

angled line and then place the dimensionbetween the two lines.

2. In the dialog, type 20 and press Enter to acceptthat value.

The lines update to reflect the new angular value.

Define the length of the flange by adding another

dimension:

1. Select the center point of the arc, select thecenter point of the hub, and place the dimensionnear the bottom of the sketch.

2. In the dialog, with the dimension valuehighlighted, type 66 and then press Enter to

accept that value.

3. Press Esc to quit the General Dimension tool.


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Creating Another Feature

Extruding the Flange

The sketch for the flange is now complete. Next, use the Extrude tool to create another feature:

1. Press F6 to display an isometric view.

2. In the graphics window, right-click and chooseFinish Sketch.

3. In the Panel bar, click the Extrude tool.

4. In the graphics window, click inside the sketchgeometry defining the flange.

5. In the Extrude dialog, click the Centered option.

6. Highlight the distance value, type 12 and then clickOK to create the second extrusion feature.


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Zooming and Rotating

Now it is time to visually examine your model. In Autodesk Inventor, you can easily do this at any timeeven

while you are using another tool.

View your model:

1. On the Standard toolbar, click the Zoom All tool.

2. The Zoom All tool adjusts the view of the model so that youcan see the entire model onscreen.

3. On the Standard toolbar, click the Rotate tool.

The Rotate tool displays an Orbit symbol as a circle.

4. Dynamically rotate the model and view it from differentdirections by moving the cursor inside the Orbit circle andthen clicking and holding the left mouse button while

moving the cursor.

5. Rotate the model about its vertical or horizontal axis by

moving the cursor over the quadrant lines on the perimeterof the Orbit circle and then dragging.

6. Spin the model on an axis perpendicular to your screen by moving the cursor just outside the Orbit circle andthen dragging.

7. Redefine the center of rotation by clicking at the point you want to rotate around.

8. Press Esc or right-click and choose Done to quit the Rotate tool.

9. Press F6 or right-click and choose Isometric View to return to the isometric view.


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Creating a Pattern

Create a circular pattern:

1. On the Panel bar, click the Circular Pattern tool.

The Circular Pattern dialog displays. The Featuresbutton is selected, enabling you to identify the

features to pattern.

2. In the graphics window, select the flange extrusion

(arrow 1).

3. In the Circular Pattern dialog, click the Rotation Axis

button.

4. In the graphics window, select the inner face of thehub (arrow 2). A preview of the circular pattern

displays.

5. In the Circular Pattern dialog, clickOK to create the circular pattern feature.

A circular pattern of the flange with six equally spaced occurrences is created.

Saving Your Work

Save your design:

1. On the Standard toolbar, click the Save tool.

2. In the Save As dialog, browse to the folder Chapter 1_Creating Your First 3D Part.

3. In the Save As dialog, type My_Carrier as the file name and then clickSave to save your design.

4. From the File menu, clickClose.

Chapter Summary

Autodesk Inventor software includes a wide range of 3D part modeling tools helping you expedite the designof simple or complex shapes. The part design environment offers a complete set of commands that add or

remove material using intuitive workflows, making it the industrys shortest path to full 3D productivity.


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Chapter 2: Creating a Production Drawing

33


Table of Contents

In This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35


Starting a New Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Changing the Default Sheet Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Generating the First View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Creating More Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Shading a View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Adding a Section View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Retrieving Model Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Adding Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Working with Styles and Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Saving Your Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42


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In This Chapter

As opposed to the design and documentation

techniques of AutoCAD, where you create thedesign representation in the drawing environment,Autodesk Inventor creates detailed drawings

directly from the geometry of the 3D model. All ofthe geometry needed to define the part in a 2Dview exists in the 3D Model. In this chapter you will

create a detailed drawing from the carrier part. Youwill place multiple drawing views, add dimensions,and experience productivity gains integral to the

Autodesk Inventor drawing environment.


Simplify the creation of accurate detail drawings using Autodesk Inventor. All 2D entities are generated for youautomatically in the desired drawing view from the 3D model. It is quick and easy to generate your drawing

views, place dimensions and other annotations. Since the drawing geometry is created directly from the 3Dmodel, you benefit from the security of knowing any changes made to the 3D model will be properly reflectedin your drawing. As opposed to complete recreation of the 2D design views, rework from design changes

consists of repositioning or adding annotations if needed.

Starting a New Drawing

Create a drawing of the carrier part.

First, open the carrier part:

1. On the Standard toolbar, click the Open tool.

2. In the Open dialog, browse to the Chapter 2_Creating a Production Drawing folder and double-clickChapter 2_Carrier.ipt.

Create a new drawing of your 3D part:

1. On the Standard toolbar, click the New tool.

2. In the Open dialog, click the Metric tab, then double-click the ISO.idw tool.

Autodesk Inventor creates a new A3 size drawing sheet with a frame and title block. Notice that the Panelbar has automatically changed to offer the appropriate drawing tools.


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Changing the Default Sheet Size

Next, change the sheet size from A3 to A2:

1. In the browser, right-clickSheet:1 and choose Edit Sheet.

2. In the Edit Sheet dialog, select A2 from the Size drop-down list and clickOK.

Generating the First View

Create the first view of your 3D part:

On the Panel bar, click the Base View tool.

The Drawing View dialog displays, and a preview of the base view is shown at the current cursor location.

Create a drawing view of the carrier part:

1. In the Drawing Viewdialog, ensure the scaleis set to 1:1 and the style

is set to Hidden Line

.

2. Move the cursor to the

lower-left side of thedrawing sheet and thenclick to place the view.

Tip: If the dialog is in theway, simply drag it by

clicking the blue title barat the top.


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Creating More Views

1. Create a side and isometric

view of the part:

2. On the Panel bar, click the

Projected View tool.

3. Select the front view you justcreated and then click to the

right to define the location ofthe side view.

A rectangular preview of theview displays.

4. Move the cursor to the upperright (as shown in the image),

and click again to define the location for an isometric view.

5. Right-click and choose Create to finalize these drawing views. Your drawing should now show three

different drawing views similar to the image.

Shading a View

You can also enhance the appearance of your drawing views by shading the isometric view:

1. Move the cursor over the isometricview (avoid placing the cursor over

lines in the view), right-click andchoose Edit View.

2. In the Drawing View dialog, click

the Shaded tool and then clickthe Display Options tab.

3. In the upper-right corner, clear theTangent Edges check box and

then clickOK.


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Adding a Section View

You can also create section views:

1. On the Panel bar, click the Section View tool.

2. Select the front view (the view in the lower-left corner of the sheet) to

identify the parent view.

Identify the position of the horizontal section line in the parent view:

1. Move the cursor over the center of the radius of the right-most flange.

A green dot displays.

2. Move the cursor to the right of the hole (a dotted line displays as you

move the cursor) and then click to define the start point of the sectionline.

3. Move the cursor to the left sideof the front view. When thecursor is outside the left flange

and the preview of the line is

horizontal, click to define theendpoint of the section line.

Tip: When sketching the line,ensure that the horizontal

constraint displays next to theline before you click the secondpoint on the line.

4. To finish defining the horizontalsection line,right-click in the

graphics window and choose

Continue.

5. To place the section view, clickthe location above the frontview.


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Note: If the section view does notgo completely through the frontview, you can correct this by

dragging the end of the section line

to the left. The section viewautomatically updates after you

adjust the location of the sectionline.

Retrieving Model Dimensions

Because you are designing in 3D you will simply displaythe dimensions that were used to define the 3D part.

Retrieve the model dimensions for a specific drawing view:

1. Move the cursor into the front view (lower-left corner ofthe drawing sheet), right-click and choose Retrieve

Dimensions.

2. In the Retrieve Dimensions dialog, click the Select

Parts option and then select any line in the front view.

The model dimensions appropriate for the front view ofthe part display.

3. In the Retrieve Dimensions dialog, clickSelectDimensions.

4. To identify the dimensions you want to keep, click

and drag a window box selection over all thedimensions in the front view.

5. In the Retrieve Dimensions dialog, clickOK.

6. To clean up the dimension display, in the graphicswindow, click on each dimension and drag to a newlocation to reposition.


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Adding Dimensions

Next, you add baseline dimensions to the section view.

Display drawing annotation tools on the Panel bar:

Click the title bar on the Panel bar and choose DrawingAnnotation Panel.

Add baseline dimensions to the section view:

1. Zoom in on the section view.

2. On the Panel bar, click the Baseline Dimension Set

tool.

3. In the section view, from bottom to top, select the fourhorizontal lines shown in the image to the right.

4. Right-click and choose Continue.

5. Click to the right of the view to place thebaseline dimensions.

6. In the graphics window, right-click and

choose Create to place the dimensions.

Working with Styles and Layers

With Autodesk Inventor software, much like AutoCAD,you can control the visibility, color, linetype, and

lineweight of objects.

First, use the Select Layer tool to control the visibility of

objects in your drawing:

1. On the Standard toolbar, click the down-arrow next to

the Select Layer drop-down list, as shown in theimage.

2. In the list, click the light bulb symbols next to the

Hatch (ISO) and Dimension (ISO) entries.

The hatch and dimensions are no longer visible in your

drawing.

3. Repeat this process to turn the visibility of the hatch and dimensions back on.


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Change the color of the dimensions:

1. On the Standard toolbar, click the Edit Layers tool.

2. In the Styles and Standards Editor dialog, in the Dimension (ISO) row, click the Color box.

3. In the Color dialog, choose Red and then clickOK.

The color for the Dimension (ISO) layer is now set to red.

Next, create a new layer and move a

dimension to that layer.

1. At the bottom of the Layer Styles

section of the Styles and Standards

Editor dialog, clickClick here toadd.

2. Type the name My Layer, changethe color to Blue, and ensure the

linetype is set to Continuous.

3. At the top of the Styles and

Standards Editor dialog, clickSaveand then clickDone.

Move a dimension to the newlayer:

1. In the graphics window, selectthe R6 dimension in the lower-

left view.

2. On the Standard toolbar, click

the Select Layer drop-down,scroll to the bottom and thenchoose My Layer.

The dimension color changes

to the color you defined onyour custom layer.


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Saving Your Work

Save your production drawing of the carrier part:

1. On the Standard toolbar, click the Zoom All tool and then click the Save tool.

2. In the Save As dialog, browse to the Chapter 2_Creating a Production Drawing folder and ensure the file

name is Chapter 2_Carrier.idwand then clickSave.

3. Close the Chapter 2_Carrier.idwdrawing window and then close the Chapter 2_Carrier.iptpartwindow.

Chapter Summary

Increase accuracy and save time in both creation and modification of your detail drawings with the automaticdrawing functions of Autodesk Inventor.


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Chapter 3: Completing the Part Design

43


Table of Contents

In This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45


Opening the Part and Drawing Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Creating Fillets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Calculating Mass Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Creating Work Axes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Creating a Work Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47


Creating a Revolve Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Changing Object Visibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Associative Drawing Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Saving Your Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51


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In This Chapter

In this chapter, you will see how to change designs with

complete confidence, even after drawings are created. Next,you round the edges of your carrier part by applying fillets tothe 3D model. You also calculate the parts weight and create

cuts in the flanges to reduce weight and raw material. Yourviews are updated automatically when you review thedrawing.


Quickly create and revise your designs using Autodesk Inventor 3D software. Understand the physicalproperties of your designs. By monitoring the effects a design change or assembly reconfiguration may haveon physical properties such as center-of-gravity, you can make informed, intelligent design decisions and

engineer with confidence.

Opening the Part and Drawing Files

First, open the carrier 3D part and its corresponding drawing:

1. On the Standard toolbar, click the Open tool.

2. In the Open dialog, browse to the Chapter 3_Completing the Part Design folder and then double-clickChapter 3_Carrier.idw.

3. On the Standard toolbar, click the Open tool again.

4. In the Open dialog, browse to the Chapter 3_Completing the Part Design folder and double-click

Chapter 3_Carrier.ipt.

Creating Fillets

Next, you will create rounds and fillets on the sharp edges of the carrier part.

Create the first set of fillets:

1. On the Panel bar, click the Fillet tool.

Rather than selecting individual edges, you will select multiple edges of a specific type.


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2. In the Fillet dialog, check the All Rounds check boxand then clickOK to create the fillet feature.

This creates a fillet feature with a default 2 mm

radius on all the sharp edges of your part.

Create the second set of fillets:

1. Click the Fillet tool again.

2. In the Fillet dialog, check the All Fillets check box.

3. Highlight the 2 mm radial value and type 3.

4. Click OK to create the second fillet feature.

You have created another fillet feature with a 3 mmradius.

Calculating Mass Properties

When using Autodesk Inventor for 3D design, at anypoint in the design cycle, you can calculate your part

or assemblys mass propertiesmass, area, volume,center of gravity, and so on.

View mass properties:

1. In the Model browser, right-click on Chapter3_Carrier.iptand choose iProperties.

2. In the Properties dialog, click the Physical tab to

view the mass properties of your part.

3. In the Properties dialog, click to expandtheMaterial list and select Steel from the list. Noticethat the physical properties update.

4. Click OK.


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Creating Work Axes

Next, you use the axes and planes work feature to create the proper orientation for the upcoming cut feature.

Create a work axis on the hub:

1. On the Panel bar, click the Work Axis tool.

2. In the graphics window, select the inner face ofthe hub (arrow 1).

You have created the first work axis.

Create another work axis on the radius of theflange:

1. Click the Work Axis tool again.

2. Select the outer radius of the flange extrusion

(arrow 2).

Creating a Work Plane

Next, create a work plane on the two workaxes:

1. On the Panel bar, click the Work Plane

tool.

2. In the graphics window, select the twowork axes.

You have created a work plane thatbisects the part on the two work axes.


Create a new sketch on the new work plane:

1. On the Standard toolbar, click the 2D Sketchtool.

2. In the graphics window, click on the work plane youjust created.


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Viewing the Sketch Plane

Notice that the grid on the sketch plane interferes with the

model. Use the Slice Graphics tool to see the entire sketchplane or to work inside solid models.

To use the Slice Graphics tool:

In the graphics window, right-clickand choose Slice

Graphics.

Creating a Rectangular Sketch

Next create a rectangular sketch by orienting your view normal to the sketch plane:

1. On the Standard toolbar, click the Look At tool and then select the work plane.

2. Click the Zoom Window tool (or use the wheel on your mouse) to zoom in on the right side of the part.

Tip: When you use the mouse wheel for zooming, thecurrent cursor location is used as the zoom area target.

Create a rectangle:

1. On the Panel bar, click the Two Point Rectangle tool.

2. At the approximate location shown in the image on the

right, click once to define the upper left of the rectangle andthen click again to define the lower right of the rectangle.

3. Press Esc to quit the Two Point Rectangle tool.

Dimension the rectangle:

1. On the Panel bar, click the General Dimension

tool.

2. Select the right vertical edge of the rectangle andplace the dimension to the right.

3. In the Edit Dimension dialog, type 8 and press Enter.

4. Select the lower horizontal edge of the rectangle andplace the dimension below the rectangle.

5. In the Edit Dimension dialog, type 20 and pressEnter.


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6. Press Esc to quit the General Dimension tool.

Aligning the Sketch with the Part Edges

Next, you project the edges of the part to the sketch plane

and then use colinear constraints to align the rectangularsketch with the edges of the flange.

Project the edge of the flange:

1. On the Panel bar, click the Project Geometry tool.

2. Select the lower edge of the flange and then select the

right (silhouette) edge of the flange.

Two lines, representing the edges of the flange,

display.

3. Press Esc to quit the Project Geometry tool.

Align the rectangle with the projected edges:

1. In the graphics window, right-click, choose Create

Constraint and then click the Colinear tool.

2. Select the right edge of the rectangle and then selectthe projected right edge of the flange.

The rectangular sketch aligns vertically with theprojected edge.

Finish constraining the rectangle from an isometric view:

1. In the graphics window, right-click and choose IsometricView (or press F6).

2. With the Colinear tool stillactive, select the lower edge of

the rectangle and then selectthe projected lower edge of theflange.

The rectangular sketch is now

fully constrained to the properlocation on the flange.

3. Press Esc to quit the Colinear tool.


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Creating a Revolve Feature

Now that you have finished the sketch, you will use the

Revolve tool to create the feature.

1. To start the Revolve tool using a keyboard shortcut,

press the R key on your keyboard.

Because there is only one closed profile in the

sketch, the rectangle is automatically selected foryou.

2. To define the center axis for the revolution, selectthe work axis at the center of the hub.

3. In the Revolve dialog, click the Cut option and

then clickOK to create the Revolve feature.

Changing Object Visibility

By now, you have probably noticed that several new items appear in the browser. The model tree in the browser

shows each step in the modeling process.

See how the elements in the browser are related to thegeometry on your part:

Move the cursor over the elements in the browser. The

corresponding part geometry highlights in thegraphics window.

Because you no longer need to use the two work axes andthe work plane, you can use the browser to turn off their

visibility:

1. In the browser, click the plus sign(+) next to Work

Plane1 in the browser.

2. Press and hold the Ctrl key, then select Work Plane1,Work Axis1 and Work Axis2.

All three items in the browser are highlighted.

3. Right-click one of the highlighted items and then choose Visibility.

The work axes and work plane are no longer visible in the graphics window and the feature icons in thebrowser are grayed.


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Associative Drawing Updates

Next, you will revisit the

production drawing of the carrierpart. Autodesk Inventor drawingsare always in sync with the 3D

model. Any change you make tothe 3D model associativelyupdates the drawing geometry.

View the carrier drawing:

From the Window menu, clickChapter 3_Carrier.idw.

Note: The features you justcreated, the fillets and the

revolved cut, wereautomatically updated in thedrawing.

Saving Your Work

You have completed your design of the carrier.

Save your design and drawing:

1. Close the Chapter 3_Carrier.idwdrawing window.

2. When prompted to save changes to your model and its dependents, clickYes.

3. Close the Chapter 3_Carrier.iptpart window.

Chapter Summary

Improve every aspect of your design before it is built, reducing manufacturing costs and decreasing time tomarket using Autodesk Inventor for 3D design.


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Chapter 4: Using AutoCAD Data

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Table of Contents

In This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55


Creating a 3D Part Using AutoCAD Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Importing AutoCAD Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Using Imported Geometry to Create a Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Creating a Feature Using a Shared Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59


Importing More AutoCAD Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Rotating and Aligning DWG Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Finishing the Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Creating a Revolve Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Saving Your Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66


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In This Chapter

In this chapter, you will create a new part using AutoCAD

geometry as the basis for the design. You create a 3D bearinghousing for the rear axle. The finished 3D bearing housing isshown on the right.

Autodesk Inventor gives you the ability to import AutoCADgeometry in two different waysyou can simply copy and

paste from AutoCAD or you can use the import utility. Bothmethods are described belowyou may choose whichworkflow to follow. If you have AutoCAD installed on your computer it is suggested you follow the Workflow

Option 1: Using the Copy and Paste from AutoCAD Import Method. If you do not have AutoCAD on your computerplease follow the Workflow Option 2: Using the Autodesk Inventor Import DWG Import Method.


Autodesk Inventor makes it easy to re-use existing DWG data, capturing geometry and converting dimensions

to enable part modification, providing you with the best possible workflow for maximizing the value of yourAutoCAD data. Autodesk Inventor allows valuable, proven designs created in AutoCAD to be incorporated intonew 3D designs or continue to be available in 2Dgiving you the right tool for the job and allowing you to

move to 3D at your own pace.

Creating a 3D Part Using AutoCAD Data

To create a new part using a standard template:

1. On the Standard toolbar, clickNew .

2. In the Open dialog, click the Metric tab and then double-clickStandard (mm).ipt .

Importing AutoCAD Data

If you have AutoCAD installed on your computer, we suggest you follow the Workflow Option 1: Using the Copyand Paste from AutoCAD Import Method. If you do not have AutoCAD on your computer, please follow theWorkflow Option 2: Using the Autodesk Inventor Import DWG Method.

Workflow Option 1: Using the Copy and Paste from AutoCAD Import Method

To complete this workflow you use both Autodesk Inventor and AutoCAD applications. If you do not have a

version of AutoCAD or AutoCAD Mechanical installed on your computer, proceed to Workflow Option 2.

Keep the Autodesk Inventor application running, but minimize the application while you work in AutoCAD.


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In the upper right-hand corner of the Autodesk Inventor window, click the Minimize tool.

If you have AutoCAD on your computer:

1. Start AutoCAD.

2. In AutoCAD, from the File menu, clickOpen.

3. In AutoCAD, in the Select File dialog, browse to the Chapter 4_Using AutoCAD Data folder (default was

C:\Inventor_R11_TestDrive\Workspace\) and then choose the file Chapter 4_Axle_Bearing.dwg and thenclickOpen.

Copying the AutoCAD Data to Import

1. In AutoCAD, turn off the Dimension, Hatch,Hidden, Hidden Narrow, Section Line, SketchGeometry, and Symbol layers.

2. In the AutoCAD graphics window, select theouter square profile of the part (arrow 1), thetriangular edges (arrow 2), the four small holes in

each corner (arrows 3, 4, 5, 6), and the smallestcircle at the center of the part (arrow 7).

3. In the AutoCAD graphics window, right-click andchoose Copy.

The AutoCAD geometry is placed on yourclipboard.

4. To minimize your AutoCAD application, in theupper right-hand corner of the AutoCAD

window, click the Minimize tool.

Pasting the AutoCAD Data into Autodesk Inventor

1. Maximize the Autodesk Inventor application window.

2. In the Autodesk Inventor graphics window, right-click and choose Paste.

A dotted blue rectangle displays.

3. In the Autodesk Inventor graphics window, right-

click and choose Paste Options.

4. In the Paste Options dialog, clickSpecify Units

and ensure the value is set to mm.


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5. In the Paste Options dialog, verify that Constrain End Points is checked.

6. Click OK.

7. In the graphics window, click to paste the AutoCAD data.

8. On the Standard Toolbar, click the Zoom All tool.

You have just copied and pasted AutoCAD data directly into your

Autodesk Inventor sketch.

Proceed to the Using the Imported Geometry to Create Features

section.

Workflow Option 2: Using the Autodesk Inventor

DWG Import Method

To use Autodesk Inventor sketch environments Insert AutoCAD file tool, please follow the steps below:

1. On the Panel bar, click the Insert AutoCAD File tool.

2. In the Open dialog, browse to the Chapter 4_Using Autocad Data folder, choose Chapter 4_AxleBearing.dwg and then clickOpen.

The Layers and Objects Import Options dialog displays.

Using the DWG Import Tool

Next, you identify the layers or geometry you want to import. Although you can import the entire drawing,you may import only the contents you need.

Import content:

1. In the upper right-hand corner of the Layers and Objects Import Options dialog, click the White

Background tool.

2. In the Selective import area, clear the check boxes for all layers including and between Dimension and

Symbol.

Tip: You can use the Shift key to select all items between these two layers and then click the check boxonce to clear all the check boxes. Notice as you select or deselect the layers that the preview windowdynamically updates.


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3. In the Selection area, clear the All check box.

This enables you to select geometry in the Import

Preview window.

4. In the Import Files Units area, ensure Specify Units

is selected and set to mm.

5. Verify that Constrain End Points is checked.

6. In the Import Preview window, drag a rectanglearound all the geometry in the right-hand view, asshown in the image.

Note: To zoom and pan inside the Import Previewwindow, you can use the wheel mouse or right-

click in the Import Preview window and choosethe Zoom and Pan commands.

7. In the Import Preview window, select the outersquare profile of the part (arrow 1), the triangular

edges (arrow 2), the four small holes in each corner(arrows 3, 4, 5, 6), and the smallest circle at thecenter of the part (arrow 7).

Tip: If you select the wrong geometry, press andhold the Shift key and reselect the geometry to

remove it from the selection set.

8. Click Finish.

The geometry you selected is imported as sketch

geometry for your part.

Using Imported Geometry to Create a Feature

You need to have completed either Workflow 1 or Workflow 2 at this point. Next, you use the imported geometry

to create the base of the bearing housing. The base will be created using two extrusion features.

1. In the graphics window, right-click and choose Finish Sketch.


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2. To display an isometric view, press F6.


4. To identify the profile to extrude, select just

outside the large center circle (arrow 1) andthen select the four triangular shapes near each

edge (arrows 2-5).

Autodesk Inventor enables you to selectmultiple separate regions to extrude.

5. In the Extrude dialog, for the distance value,type 6 mm.

6. Click OK to create the first extrusion feature.

Creating a Feature Using a SharedSketch

To finish the base of the bearing housing, you will create another extrusion by reusing the imported AutoCADgeometry.

1. Near the bottom of the Model browser, click the plus sign(+) next to Extrusion1.

2. Right-click on Sketch1 and choose Share Sketch.

The imported sketch geometry displays in the graphics window.

Create the second extrusion feature for the base:


2. To define the profile to extrude, in the graphicswindow, select the area just outside the centerhole on the base.

3. In the Extrusion dialog, for the distance value,type 10 mm.


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4. Click OK to create the second extrusion definingthe shape of the base.

5. In the browser, right-clickSketch1 (just above the

Extrusion1 feature), and choose Visibility to turnoff the visibility of the shared sketch.


Next, you create a new sketch for the revolve feature.

Creating a Work Plane

You create a work plane at the center of the part that will be used to orient the sketch for the revolve feature.

1. On the Panel bar, click the Work Plane tool.

2. In the graphics window, right-click and chooseCreate Axis.Then select the face of the large

hole at the center of the part, as shown on theright (arrow 1).

3. Select the right planar face of the part, as shownon the right (arrow 2).

4. In the Angle dialog, type 0 (zero) and press Enter.

A work plane is created parallel with the

side face and centered in the hole. In thebrowser, notice the work axis is nested

under the work plane.


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Creating the Sketch

1. In the graphics window, right-click the new work plane you just created and choose New Sketch.

2. Press the F7 key to slice the graphics.

3. On the Standard toolbar, click the Look Attool and then select the work plane.

Creating Reference Geometry

Next, you project the right edge of the part and then create a point that is later used to orient the imported

sketch geometry for the revolution feature.

1. On the Panel bar, click the Project Geometry tool.

2. In the graphics window, select thebottom, horizontal edge of the part.

3. In the graphics window, right-click andchoose Done.

4. On the Panel bar, click the Point,

Center Point tool.

5. Move the cursor near the center of theprojected line, and when a green dot is

displayed on the line, click to place thepoint.

6. In the graphics window, right-click andchoose Done.

Importing More AutoCAD Data

If you have AutoCAD installed on your computer, we suggest you follow the Workflow Option 1: Using the Copy

and Paste from AutoCAD Import Method. If you do not have AutoCAD on your computer, please follow theWorkflow Option 2: Using the Autodesk Inventor Import DWG Method.


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Workflow Option 1: Using the Cut and Paste from AutoCAD Import Method

To complete this workflow you will use both the Autodesk Inventor and AutoCAD applications. If you do not

have a version of AutoCAD or AutoCAD Mechanical installed on your computer, proceed to Workflow Option 2.

Keep the Autodesk Inventor application running, but minimize the application while you work in AutoCAD.

In the upper right-hand corner of the Autodesk Inventor window, click the Minimize tool.

Copying the AutoCAD Objects to Import

To copy AutoCAD geometry:

1. Maximize the AutoCAD application window.

Note: The Dimension, Hatch, Hidden, Hidden Narrow, Section Line, Sketch Geometry, and Symbol layers

should already be turned off.

2. In the AutoCAD graphics window, drag a rectangle around all of the

geometry in the right-hand view as shown in the image.

3. In the AutoCAD graphics window, right-click and choose Copy.

The AutoCAD geometry has been placed on your clipboard.

4. Minimize the AutoCAD application by clicking the Minimizetool in the upper right-hand corner of the AutoCAD window.

Pasting the AutoCAD Data into Autodesk Inventor

1. Maximize the Autodesk Inventor application window.

2. In the Autodesk Inventor graphics window, right-click and choosePaste.

A dotted blue rectangle will appear.

3. In the Autodesk Inventor graphics window, right-click and choose Paste Options.

4. In the Paste Options dialog, clickSpecify Units and ensure the value is set to mm.

5. In the Paste Options dialog, verify that Constrain End Points is checked.


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6. Click OK.

7. In the graphics window, click to paste the AutoCAD

data beneath the existing geometry.

You have just copied and pasted AutoCAD data into yourAutodesk Inventor sketch.

Proceed to the Rotating and Aligning the Geometrysection.

Workflow Option 2: Using the Autodesk

Inventor DWG Import Method

Follow the steps below to use the Autodesk Inventor sketch environments Insert AutoCAD file tool.

1. On the Panel bar, click the Insert AutoCAD File tool.

2. In the Open dialog, browse to the Chapter 4_Using AutoCAD Data folder, select Chapter

4_Axle_Bearing.dwg and then clickOpen.

The Layers and Objects Import Options dialog displays.

Using the DWG Import Tool

1. In the upper right-hand corner of the Layers andObjects Import Options dialog, click the White

Background tool.

2. In the Selective import area, clear the check

boxes for all layers including and betweenDimension and Symbol.

3. In the Selection area, clear the All check box.

4. In the Import Files Units area, ensure Specify

Units is selected and set to mm.

5. Verify that Constrain End Points is checked.

6. In the Import Preview window, drag a rectanglearound all the geometry in the right-hand view.

7. Click Finish.


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Moving Imported Geometry

1. In the graphics window, drag a rectangle around the geometry you just imported.

2. With the geometry highlighted, click on thegeometry and drag the geometry just

below the part as shown in the image onthe right (the placement location is onlyapproximate).

Rotating and Aligning DWGGeometry

You need to have completed either Workflow 1 or Workflow 2 at this point. Next, you rotate and align the sketchgeometry with respect to the reference geometry of the 3D part.

1. On the Panel bar, click the Rotate tool.

2. Ensure all the geometry is selected, and then, in theRotate dialog, clickCenter Point and then select any

point along the centerline of the sketch geometry.

3. In the Rotate dialog, enter an Angle value of180.

4. Click Apply to rotate the geometry.

5. Click Done to close the Rotate dialog.

Align the geometry:

1. On the Panel bar, click the Move tool.


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2. Ensure all the geometry is selected and then click

the Move From tool and select the pointshown in the image to the right (arrow 1).

In the Move dialog, the Move To tool isautomatically selected.

3. To identify the location to move to, select the Point,CenterPoint you placed on the bottom midpoint of

the part (arrow 2).

4. Click Apply to move the geometry.

5. Click Done to close the Move dialog.

The imported sketch geometry is now aligned at theproper location on the 3D part.

Finishing the Sketch

1. In the graphics window, right-click and select Finish Sketch.

2. Press F6 to rotate to an isometric view.


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Creating a Revolve Feature

Autodesk Inventor 11 Test Drive

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