Computer Aided Design and Drafting

Introduction

ObjectivesUpon completion of this lesson you

will be able to:Identify and Describe a Technological SystemIdentify and Describe components of a

computer systemDescribe CADIdentify and Describe capabilities of a CAD

systemIdentify and Describe basic functions of CAD

software

Technological System

Inputs Processes Output

Feedback

Components of a Computer System

HardwareSoftware

Hardware

Physical components of a computer systemExamples: Monitor, Keyboard, Mouse, Hard drive, Motherboard, DVD drive, CD Rom, Flash drive, Memory, Video Card

SoftwareApplication Program

Tools that help you accomplish your work: (designing, drafting, rendering, word processing, Ex: AutoCAD LT 2005, Microsoft Word)

System Software (Operating System)Platform to run application programs:(Windows XP,Vista, MAC OS X)

What is CAD?

An electronic tool that enables you to make quick and accurate drawings with the use of the computer.CAD is an acronym for:-Computer Aided Drafting-Computer Aided Design-Computer Aided Drafting and Design (CADD)

Capabilities of a CAD system

Flexibility of editing- ability to make quick alterations to a drawing

Units and Accuracy levels- ability to change and work with different units and create highly accurate drawings

Storage and Access for drawings- save space, quick access, more organized

Capabilities (continued)Sharing CADD drawings- electronic files can be transferred easily and quickly from any location

Design- Allows you to quickly change current designs with accuracy

Main functions of all CAD systems

Draw- add geometry to drawing (lines, arcs, circles, ellipses, text)

Edit- change elements of drawings (erase, move, array, copy, offset)

Data Output- view/display functions, printing (zoom, pan, scale, colors)

Functions (continued)

System Control-Setting drawing environment (layers, line types, styles, drawing space, drawing aids)

Data Storage and Management-Filing, Saving drawings (open, saving, copying, deleting files)

The End