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Technology Interactions  ‹ Chapter Title Copyright © Glencoe/McGraw-Hill A Division of The McGraw-Hill Companies, Inc.

Technology Interactions

Computer-aided design uses computer systems to

design products and create the drawings needed for

the products to be manufactured.

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

CAD is the process of !esigning an!!rafting on a compter#

CAD is $ic%er an! more accrate# It

has largely replace! han! !rafting#

&hat Is Compter-Ai!e! Design'

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

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CAD A!vantages

(aves time

Is more accrate

Improves team commnications

Can help !etermine if a !esign will

actally wor%

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

The CAD (ystem

Har!ware

) Inpt !evices" sch as a %ey*oar!an! mose

) +tpt !evices" sch as a monitor

an! a printer or plotter 

(oftware

 The computer is the maincomponent. It has these subsystems:

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

Two-Dimensional ,2D CAD

Can show only two !imensions of ano*.ect

) &i!th an! length

) &i!th an! height

) 0ength an! height

1re$ently *eing replace! *y systemsthat can !o *oth 2D an! D !esign#

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

Three-Dimensional ,D

CAD&ireframe mo!els resem*le 3stic%figres#4

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

Three-Dimensional ,D

CAD(rface mo!els can loo% li%e the shapeof the o*.ect#

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

Three-Dimensional ,D

CAD(oli! mo!els show the shape" area" an!volme of an o*.ect#

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

5sing D CAD

Mechanical !esign

CAD/CAM

6api! prototyping

 Architectral !esign

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

Mechanical Design

This engineering activity incl!es !esign ofin!ivi!al parts" assem*lies" an! entire

!evices#

Design often *egins with compter Ds%etches that are then refine! an! mo!ifie!"

an! then final !etails are a!!e!#

The final step may *e a ren!ering#

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

CAD/CAM

This process com*ines compter-ai!e!!esign an! compter-ai!e!

manfactring#

Designs go !irectly from the CADcompter to another compter that

controls the machine that ma%es the

actal part#

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

6api! 7rototyping

5ses CAD !ata to create physicalmo!els for commnicating i!eas or to

test !esigns#

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Technology Interactions Chapter 2 Compter-Ai!e! Design Copyright © Glencoe/McGraw-Hill

 A Division of The McGraw-Hill Companies" Inc#

 Architectral Design

Has commercial an! resi!entialapplications#

Can provi!e client,s with realistic

interior an! e8terior appearances of aplanne! strctre#