Autodesk AutoCAD AutoCAD Mechanical - 2008 Instruction Manual
AutoCAD Mechanical 2008
User’s Guide
January 30, 2007Part No. 20612-050000-5000A
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1 2 3 4 5 6 7 8 9 10
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Chapter 1 About AutoCAD Mechanical . . . . . . . . . . . . . . . . . . . . 3
AutoCAD Mechanical Software Package . . . . . . . . . . . . . . . . . . 4
Leveraging Legacy Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Starting AutoCAD Mechanical . . . . . . . . . . . . . . . . . . . . . . . 4
Accessing AutoCAD Mechanical Commands . . . . . . . . . . . . . . . 5
AutoCAD Mechanical Help . . . . . . . . . . . . . . . . . . . . . . . . . 5
Product Support and Training Resources . . . . . . . . . . . . . . . . . . 6
Design Features in AutoCAD Mechanical . . . . . . . . . . . . . . . . . 7
Mechanical Structure . . . . . . . . . . . . . . . . . . . . . . . . . 7
Associative Design and Detailing . . . . . . . . . . . . . . . . . . . 7
External References for Mechanical Structure . . . . . . . . . . . . 8
Associative 2D Hide . . . . . . . . . . . . . . . . . . . . . . . . . 8
Autodesk Inventor Companion Support . . . . . . . . . . . . . . . 9
2D Design Productivity . . . . . . . . . . . . . . . . . . . . . . . . 9
Engineering Calculations . . . . . . . . . . . . . . . . . . . . . . 10
Machinery Systems Generators . . . . . . . . . . . . . . . . . . . 10
Intelligent Production Drawing and Detailing . . . . . . . . . . . 11
Detailing Productivity . . . . . . . . . . . . . . . . . . . . . . . . 11
Annotations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Standard Mechanical Content . . . . . . . . . . . . . . . . . . . 12
Standard Parts Tools . . . . . . . . . . . . . . . . . . . . . . . . . 13
v
Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 2 Commands in AutoCAD Mechanical . . . . . . . . . . . . . . . 15
Command Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Chapter 3 New and Revised Commands . . . . . . . . . . . . . . . . . . . 43
Revised Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
AMBALLOON . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
AMBOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
AMOPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
AMPARTLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
AMPARTREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
AMPARTREFEDIT . . . . . . . . . . . . . . . . . . . . . . . . . . 46
AMPOWERDIM . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
AMSCATLOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
AMSCREATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
AMSEXTERNALIZE . . . . . . . . . . . . . . . . . . . . . . . . . 48
AMSINSERT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
AMSLOCALIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
AMSNEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
AMSTLSHAP2D . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
AMSURFSYM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
AMWELDSYMBOL . . . . . . . . . . . . . . . . . . . . . . . . . 50
New Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
AMBROWSEROPEN . . . . . . . . . . . . . . . . . . . . . . . . . 50
AMBROWSERCLOSE . . . . . . . . . . . . . . . . . . . . . . . . 51
AMSCATALOGOPEN . . . . . . . . . . . . . . . . . . . . . . . . 51
AMSCATALOGCLOSE . . . . . . . . . . . . . . . . . . . . . . . . 51
AMSNAVMODE . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Design and Annotation Tools . . . . . . . . . . . . . . . . . . . 53
Chapter 4 Working with Templates . . . . . . . . . . . . . . . . . . . . . 55
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Working with Templates . . . . . . . . . . . . . . . . . . . . . . . . . 56
Setting Up Starting Layers . . . . . . . . . . . . . . . . . . . . . . 57
Setting Mechanical Options . . . . . . . . . . . . . . . . . . . . . 58
Specifying Drawing Limits . . . . . . . . . . . . . . . . . . . . . 60
Saving Templates . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Using Templates . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Setting Default Standards Templates . . . . . . . . . . . . . . . . 62
Chapter 5 Using Mechanical Structure . . . . . . . . . . . . . . . . . . . . 65
vi | Contents
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Working with Mechanical Structure . . . . . . . . . . . . . . . . . . . 67
Enabling Mechanical structure . . . . . . . . . . . . . . . . . . . 68
Folders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Creating Folders . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Modifying Folders . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Nesting Folders . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Instance vs. Occurrence . . . . . . . . . . . . . . . . . . . . . . . 73
Selection Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Components and Component Views . . . . . . . . . . . . . . . . 76
Creating Part Components . . . . . . . . . . . . . . . . . . . . . 76
Creating Assembly Components . . . . . . . . . . . . . . . . . . 78
Modifying Assembly Components . . . . . . . . . . . . . . . . . 81
Using Folders with Component Views . . . . . . . . . . . . . . . 86
Mechanical Browser Display Options . . . . . . . . . . . . . . . . . . . 86
Mechanical Browser and Bombs . . . . . . . . . . . . . . . . . . 88
Browser Restructure and Ghost Components . . . . . . . . . . . 90
External Reference Components . . . . . . . . . . . . . . . . . . . . . 96
Inserting External Components . . . . . . . . . . . . . . . . . . . 97
Editing External Components In-place . . . . . . . . . . . . . . 101
Localizing and Externalizing . . . . . . . . . . . . . . . . . . . 103
Annotation Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Associative Hide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Basics of AMSHIDE . . . . . . . . . . . . . . . . . . . . . . . . . 107
Using AMSHIDE in Assemblies . . . . . . . . . . . . . . . . . . 110
Chapter 6 Working with Layers and Layer Groups . . . . . . . . . . . . . 113
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Working with Layers and Layer Groups . . . . . . . . . . . . . . . . . 114
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Changing Layers By Selecting Objects . . . . . . . . . . . . . . . 116
Creating Layer Groups . . . . . . . . . . . . . . . . . . . . . . . 117
Using Layer Groups to Copy Objects . . . . . . . . . . . . . . . 122
Chapter 7 Designing Levers . . . . . . . . . . . . . . . . . . . . . . . . . 127
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Extending Designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Using Libraries to Insert Parts . . . . . . . . . . . . . . . . . . . 129
Configuring Snap Settings . . . . . . . . . . . . . . . . . . . . . 131
Creating Construction Lines (C-Lines) . . . . . . . . . . . . . . 132
Creating additional C-Lines . . . . . . . . . . . . . . . . . . . . 135
Creating Contours and Applying Fillets . . . . . . . . . . . . . . 138
Trimming Projecting Edges on Contours . . . . . . . . . . . . . 140
Applying Hatch Patterns to Contours . . . . . . . . . . . . . . . 143
Dimensioning Contours . . . . . . . . . . . . . . . . . . . . . . 144
Contents | vii
Creating and Dimensioning Detail Views . . . . . . . . . . . . 146
Chapter 8 Working with Model Space and Layouts . . . . . . . . . . . . 151
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Working with Model Space and Layouts . . . . . . . . . . . . . . . . 153
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Creating Scale Areas . . . . . . . . . . . . . . . . . . . . . . . . 153
Creating Detail Views . . . . . . . . . . . . . . . . . . . . . . . 156
Generating New Viewports . . . . . . . . . . . . . . . . . . . . 158
Inserting Holes Within Viewports . . . . . . . . . . . . . . . . . 160
Creating Subassemblies in New Layouts . . . . . . . . . . . . . . 165
Chapter 9 Dimensioning . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Adding Dimensions to Drawings . . . . . . . . . . . . . . . . . . . . 171
Adding Automatic Dimensions . . . . . . . . . . . . . . . . . . 171
Editing Dimensions with Power Commands . . . . . . . . . . . 175
Breaking Dimension Lines . . . . . . . . . . . . . . . . . . . . . 179
Inserting Drawing Borders . . . . . . . . . . . . . . . . . . . . . 180
Inserting Fits Lists . . . . . . . . . . . . . . . . . . . . . . . . . 182
Chapter 10 Working with 2D Hide and 2D Steel Shapes . . . . . . . . . . 185
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Working with 2D Hide and 2D Steel Shapes . . . . . . . . . . . . . . 186
Opening the initial drawing . . . . . . . . . . . . . . . . . . . . 186
Defining 2D Hide Situations . . . . . . . . . . . . . . . . . . . . 187
Inserting 2D Steel Shapes . . . . . . . . . . . . . . . . . . . . . 190
Modifying Steel Shapes Using Power Commands . . . . . . . . . 193
Editing 2D Hide Situations . . . . . . . . . . . . . . . . . . . . 194
Copying and Moving 2D Hide Situations . . . . . . . . . . . . . 196
Chapter 11 Working with Standard Parts . . . . . . . . . . . . . . . . . . 201
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Working with Standard Parts . . . . . . . . . . . . . . . . . . . . . . 203
Inserting Screw Connections . . . . . . . . . . . . . . . . . . . 205
Copying Screw Connections with Power Copy . . . . . . . . . . 211
Creating Screw Templates . . . . . . . . . . . . . . . . . . . . . 213
Editing Screw Connections with Power Edit . . . . . . . . . . . 222
Working with Power View . . . . . . . . . . . . . . . . . . . . . 226
Deleting with Power Erase . . . . . . . . . . . . . . . . . . . . . 229
Inserting Holes . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Inserting Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Turning Off Centerlines in Configurations . . . . . . . . . . . . 237
Hiding Construction Lines . . . . . . . . . . . . . . . . . . . . 238
viii | Contents
Simplifying Representations of Standard Parts . . . . . . . . . . 239
Chapter 12 Working with BOMs and Parts Lists . . . . . . . . . . . . . . . 243
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Working with Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . 244
Inserting Part References . . . . . . . . . . . . . . . . . . . . . 245
Editing Part References . . . . . . . . . . . . . . . . . . . . . . . 248
Placing Balloons . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Creating Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . 255
Merging and Splitting Items In Parts Lists . . . . . . . . . . . . . 261
Collecting Balloons . . . . . . . . . . . . . . . . . . . . . . . . 265
Sorting and Renumbering Items In Parts Lists . . . . . . . . . . 267
Using Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Chapter 13 Creating Shafts with Standard Parts . . . . . . . . . . . . . . 277
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Creating Shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Configuring Snap Options . . . . . . . . . . . . . . . . . . . . . 280
Configuring Shaft Generators . . . . . . . . . . . . . . . . . . . 281
Creating Cylindrical Shaft Sections and Gears . . . . . . . . . . 282
Inserting Spline Profiles . . . . . . . . . . . . . . . . . . . . . . 286
Inserting Chamfers and Fillets . . . . . . . . . . . . . . . . . . . 287
Inserting Shaft Breaks . . . . . . . . . . . . . . . . . . . . . . . 288
Creating Side Views of Shafts . . . . . . . . . . . . . . . . . . . 289
Inserting Threads on Shafts . . . . . . . . . . . . . . . . . . . . 290
Editing Shafts and Inserting Sections . . . . . . . . . . . . . . . 291
Replacing Shaft Sections . . . . . . . . . . . . . . . . . . . . . . 292
Inserting Bearings . . . . . . . . . . . . . . . . . . . . . . . . . 294
Chapter 14 Calculating Shafts . . . . . . . . . . . . . . . . . . . . . . . . 299
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Calculating Shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Creating Shaft Contours . . . . . . . . . . . . . . . . . . . . . . 302
Specifying Material . . . . . . . . . . . . . . . . . . . . . . . . . 303
Placing Shaft Supports . . . . . . . . . . . . . . . . . . . . . . . 305
Specifying Loads on Shafts . . . . . . . . . . . . . . . . . . . . . 305
Calculating and Inserting Results . . . . . . . . . . . . . . . . . 308
Calculating Strengths of Shafts . . . . . . . . . . . . . . . . . . 311
Engineering Calculations . . . . . . . . . . . . . . . . . . . . 315
Chapter 15 Calculating Moments of Inertia and Deflection Lines . . . . . . 317
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Contents | ix
Calculating Moments of Inertia and Deflection Lines . . . . . . . . . 318
Calculating Moments of Inertia . . . . . . . . . . . . . . . . . . 319
Calculating Deflection Lines . . . . . . . . . . . . . . . . . . . . 321
Chapter 16 Calculating Chains . . . . . . . . . . . . . . . . . . . . . . . . 327
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Chain Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Performing Length Calculations . . . . . . . . . . . . . . . . . . 329
Optimizing Chain Lengths . . . . . . . . . . . . . . . . . . . . 332
Inserting Sprockets . . . . . . . . . . . . . . . . . . . . . . . . . 333
Inserting Chains . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Chapter 17 Calculating Springs . . . . . . . . . . . . . . . . . . . . . . . 341
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Calculating Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Starting Spring Calculations . . . . . . . . . . . . . . . . . . . . 344
Specifying Spring Restrictions . . . . . . . . . . . . . . . . . . . 345
Calculating and Selecting Springs . . . . . . . . . . . . . . . . . 348
Inserting Springs . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Creating Views of Springs with Power View . . . . . . . . . . . . 352
Chapter 18 Calculating Screw Connections . . . . . . . . . . . . . . . . . 355
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Methods for Calculating Screws . . . . . . . . . . . . . . . . . . . . . 356
Using Stand Alone Screw Calculations . . . . . . . . . . . . . . . . . 357
Selecting and Specifying Screws . . . . . . . . . . . . . . . . . . 358
Selecting and Specifying Nuts . . . . . . . . . . . . . . . . . . . 360
Selecting and Specifying Washers . . . . . . . . . . . . . . . . . 361
Specifying Plate Geometry and Properties . . . . . . . . . . . . . 361
Specifying Contact Areas . . . . . . . . . . . . . . . . . . . . . 364
Specifying Loads and Moments . . . . . . . . . . . . . . . . . . 365
Specifying Settlement Properties . . . . . . . . . . . . . . . . . 367
Specifying Tightening Properties . . . . . . . . . . . . . . . . . 368
Creating and Inserting Result Blocks . . . . . . . . . . . . . . . 369
Chapter 19 Calculating Stress Using FEA . . . . . . . . . . . . . . . . . . . 371
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
2D FEA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Calculating Stress In Parts . . . . . . . . . . . . . . . . . . . . . 374
Defining Loads and Supports . . . . . . . . . . . . . . . . . . . 375
Calculating Results . . . . . . . . . . . . . . . . . . . . . . . . . 377
Evaluating and Refining Mesh . . . . . . . . . . . . . . . . . . . 379
Refining Designs . . . . . . . . . . . . . . . . . . . . . . . . . . 381
Recalculating Stress . . . . . . . . . . . . . . . . . . . . . . . . 382
x | Contents
Chapter 20 Designing and Calculating Cams . . . . . . . . . . . . . . . . 387
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
Designing and Calculating Cams . . . . . . . . . . . . . . . . . . . . 388
Starting Cam Designs and Calculations . . . . . . . . . . . . . . 389
Defining Motion Sections . . . . . . . . . . . . . . . . . . . . . 393
Calculating Strength for Springs . . . . . . . . . . . . . . . . . . 399
Exporting Cam Data and Viewing Results . . . . . . . . . . . . . 403
Autodesk Inventor Link . . . . . . . . . . . . . . . . . . . . . 405
Chapter 21 Using Autodesk Inventor Link Support . . . . . . . . . . . . . 407
Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408
Linking Autodesk Inventor Part Files . . . . . . . . . . . . . . . . . . 408
Shading and Rotating Geometry . . . . . . . . . . . . . . . . . 409
Inserting Drawing Borders . . . . . . . . . . . . . . . . . . . . . 410
Creating Drawing Views . . . . . . . . . . . . . . . . . . . . . . 414
Working with Dimensions . . . . . . . . . . . . . . . . . . . . . 421
Exporting Drawing Views to AutoCAD . . . . . . . . . . . . . . . . . 425
Linking Autodesk Inventor Assembly Files . . . . . . . . . . . . . . . 427
Accessing Parts from the Browser . . . . . . . . . . . . . . . . . 428
Accessing iProperties . . . . . . . . . . . . . . . . . . . . . . . . 428
Inserting Drawing Borders . . . . . . . . . . . . . . . . . . . . . 431
Creating Parts Lists & Balloons . . . . . . . . . . . . . . . . . . 432
Creating Breakout Section Views . . . . . . . . . . . . . . . . . 436
Modifying Breakout Section Views . . . . . . . . . . . . . . . . 443
Removing Views . . . . . . . . . . . . . . . . . . . . . . . . . . 445
Updating Autodesk Inventor Parts . . . . . . . . . . . . . . . . . . . . 446
Appendix A Layer Specifications . . . . . . . . . . . . . . . . . . . . . . . 447
Layer Specification Listing . . . . . . . . . . . . . . . . . . . . . . . . 448
Appendix B Title Block Attributes . . . . . . . . . . . . . . . . . . . . . . . 453
Attributes for Title Blocks . . . . . . . . . . . . . . . . . . . . . . . . 454
Attribute Definitions . . . . . . . . . . . . . . . . . . . . . . . . 454
Curly Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
Message Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456
Appendix C Accelerator and Shortcut Keys . . . . . . . . . . . . . . . . . . 457
Accelerator Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463
Contents | xi
xii
Overview
Part I provides information for getting started with your
AutoCAD® Mechanical software.
It includes an overview of the product capabilities, a summary
of commands with their toolbuttons and descriptions, and a
summary of new and revised commands in this release of
AutoCAD Mechanical.
In addition, Part I includes information about methods to
access commands, AutoCAD Mechanical Help, and product
support and training resources.
In this part
■ About AutoCAD
Mechanical
■ Commands in AutoCAD
Mechanical
■ New and Revised
Commands
1
2
About AutoCAD Mechanical
This chapter provides information about the AutoCAD
Mechanical software application. It describes the software
package, the basic design features in the software, and the
methods for accessing commands.
A brief overview of the Help, along with information about
where to find resources for product learning, training, and
support are included.
®
1
In this chapter
■ AutoCAD Mechanical
Software Package
■ Leveraging Legacy Data
■ Starting AutoCAD
Mechanical
■ Accessing AutoCAD
Mechanical Commands
■ AutoCAD Mechanical Help
■ Product Support and
Training Resources
■ Design Features in
AutoCAD Mechanical
3
AutoCAD Mechanical Software Package
AutoCAD Mechanical is a 2D mechanical design and drafting solution for
engineers, designers, and detailers. Its intelligent production drawing and
detailing features decrease the time required to create and change 2D
production designs. AutoCAD Mechanical introduces many 3D concepts in
a familiar 2D environment. It is powered by AutoCAD®, with its easy-to-use
palette interface and time-saving xref functionality.
The AutoCAD Mechanical design software package includes both AutoCAD
Mechanical and AutoCAD. You can use one Options dialog box to customize
settings for both AutoCAD Mechanical and AutoCAD.
Leveraging Legacy Data
The tools for migrating legacy data are installed automatically when you install
the AutoCAD Mechanical software. A separate utility tool is available for
adding structure to legacy files after they are migrated.
The integrated Autodesk® IGES Translator for transferring and sharing of CAD
data between CAD/CAM/CAE systems is installed along with the AutoCAD
Mechanical product.
Newly generated files in AutoCAD Mechanical can be saved to a previous
version so that you can run multiple versions of AutoCAD Mechanical within
the same environment.
Starting AutoCAD Mechanical
You can start AutoCAD Mechanical by using one of the following procedures:
■ Click Start on the task bar, and then choose Programs. Select Autodesk ➤
AutoCAD Mechanical 2008.
■ On the desktop, double-click the AutoCAD Mechanical icon:
4 | Chapter 1 About AutoCAD Mechanical
Accessing AutoCAD Mechanical Commands
AutoCAD Mechanical provides several methods to access commands and
manage your design process.
The following are samples of the access methods available to you:
In the graphics area, right-click and choose Power Edit.Context Menu
Toolbutton
Menu
The step-by-step procedures in the tutorials in Part II of this manual indicate
the command name in the opening procedural text. The appropriate toolbutton
is displayed in the margin next to the preferred access method. In the tutorials,
the context menu method is used when the menus are sensitive to what you
are doing. The browser method is used when you can save time and steps.
You can use any of the alternate methods as well.
Here is an example of how methods are used in the tutorials:
1 Use AMPOWEREDIT to edit a feature.
NOTE To find the location of a particular toolbutton, refer to Appendix A.
Modify ➤ Power Commands ➤ Power Edit
AMPOWEREDITCommand
In the graphics area, right-click and choose Power Edit.Context Menu
AutoCAD Mechanical Help
The Help in AutoCAD Mechanical provides information about AutoCAD
Mechanical with the power pack.
The Help is formatted for easy navigation, and includes:
■ Content organized by the major functional areas of AutoCAD Mechanical,
with Concept, Reference, and Procedure pages for each functional area.
Procedure pages provide step by step instructions on how to execute a
given task. The linked Concept page provides background information
about the procedure. The linked Reference pages contain information
Accessing AutoCAD Mechanical Commands | 5
about all the commands and dialog boxes visited while performing the
procedure.
■ Specific information about each of the features in the program.
■ Concepts and procedures for the new features in this release.
■ A keyword index and search function.
■ Printable Command Reference.
■ Guides to system variables and accelerator keys.
■ Access to Support Assistance with integrated links to solutions.
For access to Help, you can choose from the following methods:
■ From the Help menu, select Mechanical Help Topics.
■ Select the Help button in the standard toolbar.
■ Press F1.
■ Click the Help button within a dialog box.
Product Support and Training Resources
Be more productive with Autodesk® software. Get trained at an Autodesk
Authorized Training Center (ATC®) with hands-on, instructor-led classes to
help you get the most from your Autodesk products. Enhance your productivity
with proven training from over 1,400 ATC sites in more than 75 countries.
For more information about Autodesk Authorized Training Centers, contact
atc.program@autodesk.com or visit the online ATC locator at
www.autodesk.com/atc.
Sources for product support are listed on the AutoCAD Mechanical Product
Information Web page. From the AutoCAD Mechanical Web site at
http://www.autodesk.com/autocadmech, navigate to the Support Knowledge Base.
You can also navigate to the Community page, which contains links to various
communities, including the AutoCAD Mechanical Discussion Group.
6 | Chapter 1 About AutoCAD Mechanical
Design Features in AutoCAD Mechanical
This section provides an overview of the functionality in the AutoCAD
Mechanical software, including numerous innovative 2D design features.
Mechanical Structure
Mechanical structure comprises a suite of 2D structure tools for organizing
drawings and for reusing associative data. The capabilities of reuse in blocks
and accessibility in layer groups are combined in mechanical structure. When
you start the AutoCAD Mechanical application, the Mechanical structure
environment is enabled by default. You can also work with it disabled.
The mechanical structure tools include:
■ A browser interface for structured 2D mechanical design, where parts,
assemblies, views, and folders containing associated data are organized,
structured, and managed. Standard parts are automatically organized and
managed in the browser. All components are accessible through the browser
for many functions, and filters can be set to control the type and level of
detail of information displayed.
■ Folders in the browser are used for capturing elements of design for reuse.
These elements provide all of the associative instancing benefits of
components, but do not register as items in the live BOM database. They
can contain geometry.
■ All geometry remains selectable and editable at all times using familiar
commands in open workflows. Workflows for structure can be bottom-up
(recommended), middle-out (the most flexible and common workflow),
and top-down (not the primary workflow).
Associative Design and Detailing
The browser is used to manage and reuse data in both the design and detailing
drafting stages. Many functions can be performed in the browser, including
the following:
■ You can instance components and assemblies multiple times. The live
BOM database in AutoCAD Mechanical keeps track of the quantity of each
part or assembly used.
Design Features in AutoCAD Mechanical | 7
■ Changes made to an associative instance of a part or assembly, associative
component, assembly detailing view, or a standard part or feature are
automatically reflected in the other instances.
■ Folders, components, and individual views of components can be reused
as needed. They maintain full associativity with each other.
■ Annotation views can be created for components and assemblies to fully
document the design. Changes made to geometry result in associative
dimensions being updated to reflect the change.
External References for Mechanical Structure
External References for mechanical structure provides for the components of
a drawing to be inserted as an external reference to multiple drawings.
Conversely, multiple drawings can be attached as external references to a
single drawing.
The following are the key benefits of external references for mechanical
structure:
■ Increased efficiency by allowing insertion of structure components from
many drawings as external reference associatively for concurrent design.
■ Reuse of parts from existing assembly drawings very quickly.
■ Those involved in multiple design projects that reference the same drawing
are able to obtain the most updated design from the externally reference
component.
■ Ability to set up design specific reference directories as libraries for different
applications.
Associative 2D Hide
The 2D hide situation tool in AutoCAD Mechanical automates the process to
accurately represent parts and features which are partially or completely hidden
in drawing views. The following are some of the 2D hide benefits:
■ Associative hide situations are managed in the browser.
■ The underlying geometry is not altered when you create an associative
hide situation.
8 | Chapter 1 About AutoCAD Mechanical
■ When geometry is hidden, AutoCAD Mechanical knows it is a component
in the mechanical structure, and provides a tooltip with the name and
view of the component.
Autodesk Inventor Companion Support
Autodesk® Inventor™ companion support redefines the meaning of 3D to 2D
interoperability. Use the companion functionality to:
■ Access and associatively document native 3D part models without the
presence of Autodesk Inventor.
■ Visualize part models, examine and use part properties such as material,
name, and number.
■ Associatively document part models using precision hidden-line removed
projections, dimensions, and annotations.
■ Link to the native Autodesk Inventor part models automatically notifies
you of changes and enables updating of views and annotations to keep
your drawing up-to-date.
2D Design Productivity
These features increase productivity and reduce the number of steps needed
to complete mechanical designs:
■ AutoCAD Mechanical provides an intelligent, customizable layer
management system that puts objects on the appropriate layers
automatically.
■ Entities that are not on the current layer group, or entities that are on a
locked layer group can be displayed in a different color to reduce screen
clutter.
■ 2D hidden-line calculations are based on defined foreground and
background objects. You can choose hidden line representation types.
■ Auto detailing creates detailed drawings of individual components from
an assembly drawing.
■ One set of power commands is used to create, update, and edit objects.
Autodesk Inventor Companion Support | 9
■ Mechanical line objects are available for creating centerlines and center
crosses, construction lines, symmetrical lines, section lines, break lines,
and others.
■ Linear/symmetric stretch is used to modify dimensioned geometry by
changing the dimension value.
■ Predefined hatch patterns are applicable in two picks from toolbars and
menus.
Engineering Calculations
The automatic engineering calculations available in AutoCAD Mechanical
ensure proper function in mechanical designs.
■ The 2D FEA feature determines the resistance capability of an object put
under a static load and analyzes design integrity under various loads.
■ A number of moment of inertia and beam deflection calculations are
available.
■ Engineering calculations are available for shafts, bearings, and screws.
Machinery Systems Generators
Machinery systems in AutoCAD Mechanical generate the design and
calculation of shafts, springs, belts and chains, and cams. These tools ensure
that you get the design right the first time:
■ With the shaft generator, you can create drawing views of solid and hollow
shafts. Common shaft features supported include center holes, chamfers,
cones, fillets, grooves, profiles, threads, undercuts, and wrench fittings.
Common standard parts supported include bearings, gears, retaining rings,
and seals.
■ With the spring generator, you select, calculate, and insert compression,
extension, and torsion springs, and Belleville spring washers in a design.
You control the representation type of the spring, and create a spec form
to incorporate in the drawing.
■ The belt and chain generator function provides features to create chain
and sprocket systems, belt and pulley systems, calculate optimal lengths
10 | Chapter 1 About AutoCAD Mechanical
for chains and belts, and insert these assemblies in your design. Chains
and belts can be selected from standard libraries.
■ The cam generator creates cam plates and cylindrical cams given input
border conditions. You can calculate and display velocity, acceleration,
and the cam curve path. You can couple driven elements to the cam and
create NC data through the curve on the path.
Intelligent Production Drawing and Detailing
A number of commands are available in AutoCAD Mechanical that automate
the process to create balloons and bills of material.
■ You can create formatted balloons and bills of material, as well as detailed
views of portions of designs.
■ Multiple parts lists per drawing are supported. Grouping of a parts list
provides lists of like items. Selected items can be combined to calculate
total length required for stock ordering. The parts lists recognize standard
parts. You can format item numbers on parts lists.
■ Standard-sized drawing borders and customizable title blocks are available.
■ Intelligent and associative hole tables show a total count of each type of
hole along with a description of them. A second chart lists the coordinates
for each of the holes selected. Any update to the holes is reflected in the
charts.
■ A language converter translates text on a drawing into one of seventeen
different languages.
■ Revision control tables in drawings track revisions and display comments.
■ Fits lists chart all fits used in a drawing.
Detailing Productivity
■ Smart dimensions automatically maintain the proper arrangement with
each other.
■ Power dimension commands provide a single command to create and edit
all dimensions, apply specified formats, and add fits or tolerances.
Intelligent Production Drawing and Detailing | 11
■ Dimensions are automatic for 2D geometry with either ordinate or baseline
dimensions.
■ One command quickly cleans up and arranges dimensions in 2D drawings.
One system setting controls the scale for drawing symbols in all views.
■ Commands are available for align, break, insert, and join to easily
dimension a drawing.
Annotations
■ Hole notes can be inserted for standard holes.
■ Commands are available to create standards-based surface texture symbols,
geometric dimensioning and tolerances, targets, and weld symbols.
■ Fits description command creates fits descriptions for standard holes.
■ Leader command creates intelligent balloons and other leaders common
in mechanical drawings.
Standard Mechanical Content
Standard content includes parametrically generated, intelligent geometry that
you can use to generate an object from scratch. The following are available:
■ About 600,000 standard parts, including screws, nuts, washers, pins, rivets,
bushings, rings, seals, bearings, keys, and others, can be quickly
incorporated into any design.
■ About 8,000 standard features, including center holes, undercuts, keyways,
and thread ends can be quickly incorporated into any design.
■ More than 20,000 standard holes, including through, blind, counterbored,
countersunk, oblong, and others, can be quickly incorporated into any
design.
■ Thousands of structural steel shapes, including U-shape, I-shape, T-shape,
L-shape, Z-shape, rectangular tube, round tube, rectangular full beam,
rectangular round beam, and others, can be quickly incorporated into any
design.
12 | Chapter 1 About AutoCAD Mechanical
Standard Parts Tools
Standard part tools provide for the elements that go with standard parts, such
as a hole to accompany a screw. These tools include:
■ Screw connection feature for selecting entire fastener assemblies at one
time.
■ Changeable representation of a standard part between a normal, simplified,
or symbolic representation.
■ Power view to automatically generate a different view of a standard part,
such as a top view from a front view.
Collaboration
Enjoy the benefits of design collaboration for your 2D output through Autodesk
Streamline® support. Autodesk Streamline is a hosted Web service for sharing
personalized design data across the entire extended manufacturing enterprise.
Autodesk Streamline functionality includes the following:
■ Members can view and interact with the 3D data set published on Autodesk
Streamline, without waiting for the data to download.
■ Using Streamline, many people can share design information and
collaborate online. Functionality includes instant messages, e-mail
notifications, polling/voting, discussion threads, database creation, and
more.
■ AutoCAD Mechanical data can be written to the AutoCAD DWF file format,
which is one of the file types that Autodesk Streamline leverages.
■ You can export 3D CAD data in ZGL format (a compressed form of a
standard Open GL file format called XGL). ZGL readily captures 3D data
that can be rendered by the Open GL library. ZGL files can then be
uploaded to Autodesk Streamline.
Standard Parts Tools | 13
14
Commands in AutoCAD Mechanical
This chapter provides a list of the commands available in
AutoCAD® Mechanical, along with a brief description of the
function of each command and the associated toolbutton.
2
In this chapter
■ Command Summary
15
Command Summary
The following is a list of the AutoCAD Mechanical commands, a brief
description of each, and the associated toolbutton.
Some commands do not have an associated toolbutton. This list does not
contain AutoCAD® commands.
In some cases where some of the task-specific toolbars are available in a more
comprehensive format from the Main toolbar at View ➤ Toolbars, it is noted
in the table.
ton
ADCENTER
AM2DHIDE
AMANALYSEDWG
AMANNOTE
DescriptionCommand NameToolbut-
Provides layer group support within the
AutoCAD Design Center.
Hides invisible edges in unstructured situations.
Edits existing unstructured hide situations.AM2DHIDEDIT
Creates an adjusting ring on a shaft.AMADJRINGS2D
Creates a file in which the current layer structure of the drawing is written.
Creates, deletes, adds, and moves annotations
associated with drawing views.
Suits an existing hatch to a changed contour.AMASSOHATCH
Displays or attaches non attached symbols.AMATTACHSYM
16 | Chapter 2 Commands in AutoCAD Mechanical
ton
DescriptionCommand NameToolbut-
AMAUTOCLINES
AMAUTODETAIL
AMAUTODIM
AMBELL2D
Automatically creates construction lines on
selected drawing elements.
Creates an external detail drawing (xref) of
selected elements from an assembly drawing.
Creates chain, baseline, ordinate in both axes,
shaft, or symmetric dimensions.
Creates and places a balloon.AMBALLOON
Performs calculation on bearings.AMBEARCALC
Selects, calculates, and inserts Belleville spring
washers, and inserts spring specification tables
in drawings.
Creates a standard related blind hole.AMBHOLE2D
AMBOM
AMBREAKATPT
AMBROUTLINE
Creates a formatted BOM database containing
a list of attributes, parts lists with item numbers, and lists of like items in a BOM.
Breaks a line, polyline, or a spline on a specified point.
Draws a special spline to show the breakout
borders.
Command Summary | 17
ton
DescriptionCommand NameToolbut-
Switches the mechanical browser on and off.AMBROWSER
Switches the mechanical browser on.AMBROWSEROPEN
Switches the mechanical browser off.AMBROWSERCLOSE
Creates a blind slot.AMBSLOT2D
Creates and calculates cam designs.AMCAM
Draws a centerline cross with an angle.AMCENCRANGLE
Draws a centerline cross in a corner.AMCENCRCORNER
Draws a centerline cross on a circle.AMCENCRFULLCIRCLE
Draws a centerline cross with a hole.AMCENCRHOLE
Draws a centerline cross in a hole.AMCENCRINHOLE
Draws a centerline cross.AMCENCROSS
18 | Chapter 2 Commands in AutoCAD Mechanical
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