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AutoCAD Lecture 1AutoCAD Lecture 1Introduction to AutoCAD Introduction to AutoCAD

Rick Retzlaff P.Eng.Rick Retzlaff P.Eng.rick.retzlaff@usask.carick.retzlaff@usask.ca

Quick SurveyQuick Survey

Who has used AutoCAD before?Who has used AutoCAD before?Who has done manual drafting?Who has done manual drafting?Class Website:Class Website:

engrwww.usask.ca/classes/ME/229/engrwww.usask.ca/classes/ME/229/Challenge Exam Challenge Exam

ObjectivesObjectives

Focus 2D Drawing Skills in AutoCAD 2008Focus 2D Drawing Skills in AutoCAD 2008Lay solid foundation for further AutoCADLay solid foundation for further AutoCADLay solid foundation for 3D Modeling Lay solid foundation for 3D Modeling

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Course OutlineCourse Outline

Introduction to AutoCAD Introduction to AutoCAD Drawing things, CoordinateDrawing things, Coordinates,s, drawing setup, editingdrawing setup, editingOrganizing Drawing with Layers, Colors, LineOrganizing Drawing with Layers, Colors, Line--types,types,WWeightseightsAdvanced Tools (1)Advanced Tools (1)Dimensioning a DrawingDimensioning a DrawingCreating and Controlling the Text in Creating and Controlling the Text in aa drawingdrawingAdvanced Tools (2)Advanced Tools (2)A look at Drawing in 3DA look at Drawing in 3DReviewReviewFinal Exam Final Exam

Fast Facts about this classFast Facts about this class

10 Meetings (Mondays 710 Meetings (Mondays 7--10)10)9 Lectures9 LecturesInIn--Class assignments and practicesClass assignments and practices1 Final Exam1 Final Exam

Engineering Drawing and Sketching Engineering Drawing and Sketching

It is an Engineering It is an Engineering LanguageLanguageWe dream in 3DWe dream in 3DWe draw in 2D (2D We draw in 2D (2D Projection)Projection)We build in 3DWe build in 3D

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Traditional Drawing ToolsTraditional Drawing Tools

Drafting Board Drafting Board –– pencil, eraser and pencil, eraser and inkink

2D AutoCAD is essentially an 2D AutoCAD is essentially an automated drafting boardautomated drafting board

The basic drawing standards and The basic drawing standards and conventions are the same conventions are the same regardless of what design tool you regardless of what design tool you use to make the drawings. use to make the drawings.

Paper is still the best creative tool!Paper is still the best creative tool!

What is AutoCAD?What is AutoCAD?

CAD CAD -- Computer Aided DesignComputer Aided DesignCAD CAD -- Computer Aided DraftingComputer Aided DraftingAutoCAD is a AutoCAD is a vector graphicsvector graphicsdrawing program, as opposed to a drawing program, as opposed to a raster graphicsraster graphics program (program (ieiePhotoshop) . Photoshop) . It uses primitive entities It uses primitive entities —— such as such as lines, lines, polylinespolylines, circles, arcs, and , circles, arcs, and text text —— as the foundation for more as the foundation for more complex objects.complex objects.

AutoCAD in the world of CAD AutoCAD in the world of CAD

AutoCAD (from AutoDesk) is widely usedAutoCAD (from AutoDesk) is widely usedDWG and DXF file formats are standardDWG and DXF file formats are standardIt is a It is a ““VanillaVanilla”” drafting package drafting package

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““VanillaVanilla”” AutoCADAutoCAD

Generic CAD tool Generic CAD tool -- Not used much in industryNot used much in industry““VerticalVertical”” applications are the norm, like:applications are the norm, like:

ArchitectureArchitectureMechanical DesignMechanical DesignPlant DesignPlant DesignCivil DesignCivil Design

Automated and Automated and CustomisedCustomised

The CAD ContinuumThe CAD Continuum

Prod

uct L

ifecycle M

anagem

ent (P

LM

)

Data-C

entric M

odelin

g

Param

etric 3D

Mod

eling

3D Solid

Mod

eling

3D C

AD

2D C

AD

Simple Complex

Where do we start?Where do we start?

We are at the beginning of this continuumWe are at the beginning of this continuum2D basic CAD2D basic CADEmulate the manual drawing processEmulate the manual drawing processLearn to make shapes accuratelyLearn to make shapes accuratelyLearn to create drawings Learn to create drawings

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Starting AutoCAD Starting AutoCAD

Double click the shortDouble click the short--cut icon or from the Start cut icon or from the Start MenuMenuYou see a blank drawing named Drawing1.dwg.You see a blank drawing named Drawing1.dwg.Start a drawingStart a drawing

Start from Scratch Start from Scratch Use a Template Use a Template Open a drawingOpen a drawingUse a WizardUse a Wizard

Interface of AutoCADInterface of AutoCAD

Explore the interfaceExplore the interface

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Creating a New DrawingCreating a New Drawing

NewNew

OpenOpenWith preview With preview windowwindow

File ManagementFile Management

All drawings are called files. All drawings are called files. Save / Save as Save / Save as .DWG.DWG.DXF.DXF.DWT.DWT

File namesFile names

Use your H:Use your H:\\ drivedriveFile names for our assignments;File names for our assignments;

Assign_X_yourlastnameAssign_X_yourlastname

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Cursor PromptsCursor Prompts

Fast and AccurateFast and AccurateRead the Prompts!!Read the Prompts!!

Commands DrawCommands Draw

LineLineA line requires a start A line requires a start point and an end pointpoint and an end point

CircleCircleAll circles have a center All circles have a center point and a point and a radius/diameterradius/diameter

Commands ModifyCommands Modify

UndoUndoOOPSOOPSuu

EraseEraseeeeraseeraseMenu: ModifyMenu: Modify--EraseEraseErase Icon in Modify ToolbarErase Icon in Modify Toolbar

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Commands activationCommands activation

Commands can be activated by:Commands can be activated by:Selection from a menuSelection from a menuSelecting from a toolbar buttonSelecting from a toolbar buttonEntering the command from the keyboard at the Entering the command from the keyboard at the command linecommand lineHINT: HINT: -- redo last command redo last command –– ““SpacebarSpacebar””

Grid and Snap Grid and Snap –– 2D Drawing Aids2D Drawing Aids

The Snap restricts the The Snap restricts the cursor to an incremental cursor to an incremental distance;distance;ToolsTools Drafting SettingsDrafting SettingsOr rightOr right--click the Snap click the Snap button on the status bar button on the status bar and click settingsand click settings

Object SnapObject Snap

Hover informationHover informationKeypointsKeypointsDynamicDynamicFast!Fast!Use it Use it Use itUse it Use it Use it

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ExampleExample

Size is counted by gridsSize is counted by gridsDraw linesDraw linesUse OSNAP!Use OSNAP!

Access HelpAccess Help

Press F1Press F1--help commandhelp command

Active assistance:Active assistance:

InIn--class Assignmentsclass Assignments

Learning AutoCAD with a series of interactive Learning AutoCAD with a series of interactive exercisesexercisesIntended to be finished in the 3 hour labIntended to be finished in the 3 hour labDue at the beginning of next weeks classDue at the beginning of next weeks classLate Assignments: Not acceptedLate Assignments: Not accepted