© boardworks ltd 2004 1 of 9 cad/cam computer-aided design/computer-aided manufacture for more...

9
© Boardworks Ltd 2004 1 of 9 CAD/CAM Computer-Aided Design/Computer- Aided Manufacture For more detailed instructions, see the Getting Started presentation. This icon indicates the slide contains activities created in Flash. These activities are not editable.

Upload: stephany-parrish

Post on 31-Dec-2015

218 views

Category:

Documents


2 download

TRANSCRIPT

© Boardworks Ltd 20041 of 9

CAD/CAMComputer-Aided Design/Computer-Aided

Manufacture

For more detailed instructions, see the Getting Started presentation.

This icon indicates the slide contains activities created in Flash. These activities are not editable.

© Boardworks Ltd 20042 of 9

What does it do?

Computer-aided design (CAD) is done using specializedgraphics software.

There are lots of different types of CAD. Objects can be drawn in two dimensions (2D) or three dimensions (3D).

Animated drawings can also be used as computer models.

© Boardworks Ltd 20043 of 9

Technical graphics programs can be used to draw plans.

Designers can draw their own objects or use pre-drawn ones from libraries (like specialized clip art).

They can move things around to make the best use of space.

What are its basic features?

Two-dimensional (2D) plans

© Boardworks Ltd 20044 of 9

It is easier to see how things will look when they are drawn in three dimensions.The designer would begin with the plan view and the computer would create a 3D image, often as a wire frame.Surface texture or ‘skins’ can be added to make things look real. The designer can experiment with ideas without having to actually make a product.

What are its basic features?

Three-dimensional (3D) objects

© Boardworks Ltd 20045 of 9

Computer modelling packages are powerful enough to allow the 3D images to be viewed from any angle.This makes it possible for building designers to allow their client to “walk through” a proposed building.Factories can plan production lines and see how they would run.Car designers can feel what it would like to be inside the car.Special suits with built-in sensors can give an even better idea of how a situation would feel.

What else can it do?

Virtual reality

Images and sounds can help to make the user feel as if they are in space or flying a plane.

© Boardworks Ltd 20046 of 9

What would it be used for?

Designers use libraries of objects to help them with their work.

© Boardworks Ltd 20047 of 9

What about CAM?

CAD packages can be linked to computer-controlled machines to turn the designs into real products.Lathes and milling machines can be programmed by linking them to the CAD system.Robotic arms can be used to weld or paint objects.They can work accurately for long hours without needing a break.

CAM is computer-aided manufacturing.

Images courtesy of BC Barton.

© Boardworks Ltd 20048 of 9

Can I have a go?

© Boardworks Ltd 20049 of 9

Summary

Computer-aided design (CAD) uses computers to help designers draw their ideas.

It often uses libraries of pre-drawn objects.

Designs can be made in two or three dimensions.

Virtual reality aims to make the user feel as if they are experiencing a real-life situation.

Computer-aided manufacturing (CAM) links CAD to computer-controlled machines and robotic arms.

CAD/CAM allows designs to be tested much more cheaply than making real prototypes.