CAD

1
CAD

• Revision Notes

2
Uses for CAD

• Uses for CAD include
• Architecture
• Vehicle and aircraft design
• Engineering design
• Microchip design
• Graphic design
• Animated films

3
Equipment for CAD

• A CAD system will need
• High resolution graphics screen
• Mouse
• Light pen
• Drawing/graphics tablet

4
Features of a CAD system

• A typical CAD system will
• Enable objects to be drawn on screen
• Store/retrieve drawings via disk
• Allow drawings to be printed
• Maintain libraries of commonly used objects

5
CAD Objects

• CAD objects can be
• Enlarged/reduced
• Cut/pasted into other drawings
• Rotated/sheared
• Viewed from different perspectives

6
Benefits of CAD

• Benefits include
• Rapid development of designs
• Easy modification
• No need for repeated printing
• Automatic checking of designs