Carrera

Introduction

Contents
Key Terms in this Chapter What is CADD? What to Expect from CADD
Presentations Flexibility in Editing Units & Accuracy Levels Storage and Access of Drawings Sharing CADD Drawings Project Reporting Engineering Analysis Computer Aided Manufacturing (CAM) Design Add-on Programs i ii ii iii iii iv iv iv v v vi vi vi vii vii viii

A Look at the CADD Industry The Focus ofthis Book How to Use CADD PRIMER

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Note:
This condensed version of CADD PRIMER is intended to give you an overview of CADD. It includes only important topics from CADD PRIMER. It does not include any diagrams. CADD PRIMER includes more than 100 diagrams that illustrate the working of CADD. For complete understanding of CADD refer to CADD PRIMER. This complete book isavailable for download for $9.95 at http://www.caddprimer.com or you can order printed copies through the publisher listed at the end of this chapter.

Key Terms in this Chapter
Term
Attributes CAD

Description
Descriptions of electronic drawing elements. An acronym for Computer Aided Design. It synonymously used for Computer Aided Drafting. An acronym for Computer Aided Design & Drafting. Acomputer system that enables you to perform drawing and design tasks. An acronym for Computer Aided Facility Management An acronym for Computer Aided Engineering An acronym for Computer Aided Manufacturing A single instruction issued by the user to complete a task on the computer. A stored collection of data that can be retrieved and organized in different ways. A task in a program that can becompleted by issuing a set of commands through the program. A collection of functions or commands that are displayed on the screen. You can make selections from the menu with a pointing device such as a mouse. A computer capability that links graphics on the screen with automated calculations and vice versa.

CADD CADD system CAFM CAE CAM Command Database Function Menu Parametric design

iIntroduction

What is CADD?
When we think of Computer Aided Design and Drafting (CADD), certain questions arise that we never think of while working on the drawing board. We do not use the essential drawing board tools: paper, pencil, T-square, compass, eraser or scale, yet still have to design or make a drawing. When even one of these tools is missing we know how aggravating it can be. With CADD wedon’t need even one of them! CADD is an electronic tool that enables you to make quick and accurate drawings with the use of a computer. Unlike the traditional methods of making drawings on a drawing board, with CADD you can sit back in an easy chair and create wonderful drawings just by clicking the buttons of a keyboard. Moreover, drawings created with CADD have a number of advantages overdrawings created on a drawing board. CADD drawings are neat, clean and highly presentable. Electronic drawings can be modified quite easily and can be presented in a variety of formats. A decade ago, CADD was used only for specific engineering applications that required high precision. Due to CADDs high price, only a few professionals could afford it. In recent years, however, computer prices havedecreased significantly and more and more professionals are taking advantage of CADD. There are hundreds of CADD programs available in the CADD industry today. Some are intended for general drawing work while others are focused on specific engineering applications. There are programs that enable you to do 2D drawings, 3D drawings, renderings, shadings, engineering calculations, space planning,structural design, piping layouts, plant design, project management, etc. There is a CADD program for virtually every engineering discipline you can think of. CADD is primarily intended for single-line drafting. It has very limited capabilities to create artistic impressions. However, CADDs 3D and rendering features are fascinating. You can create a 3D model of an object and view it from any angle....