1. Cad and cam
ICT in business

2. Topic objectives features of CAD/CAM packages
hardware requirements (speed of processor, memory, graphics card etc.
advantages and disadvantages of using CAD/CAM software
examples such as product design, home and garden design and fashion design would be suitable applications

3. What is CAD?
CAD designs an object using a computer and CAM makes the object using a computer guided machine.

4. Advantages of CAD
Can be more accurate than hand-drawn designs - it reduces human error
You can edit ideas, which makes it easier and cheaper to modify your design as you go along
Design can be sent electronically elsewhere instantly
A section of a design can be copied and pasted many times
Can be zoomed in for more detailed sections
No physical prototype so no wastage

5. Disadvantages of CAD
The software itself can be expensive so initial costs are high.
Staff need to be trained how to use the software, which also adds to costs.
Requires a powerful PC.

6. What is CAM?
CAM is the use of computers to control the manufacturing process using a design created in a CAD package.

7. Advantages of CAM Consistent quality of work
Can run without an operator present
Slight changes to design can be implemented quickly
It runs faster than a human would

8. Disadvantages of CAM Machines and equipment are expensive
Training may be required to use machines
The machine may break down (need a specialist to fix)
Manufacturers may become over reliant on CAM

9. Example of CAD and CAM
Clothing designed in CAD package and then cut out correctly and stitched by a CAM package

10. Features of CAD.
Zoom: Allows the architect to see the design in fine detail.
Stress/strain: Allows the architect to see if there are any load bearing problems with the design before it is built. / Do calculations to see if the building is safe. / Allows the architect to see if the design of the building is safe before it is built.
Walkthrough: Allows the architect to see in virtual reality what the inside of the building will look like. (Must be clearly referring to internal view).
Hatching/rendering: Allows the architect to try out different finishes on the building to see the aesthetic affect / it is suitable / to pick the best.
Rotate: allows the architect to see the design from all angles
Wire drawing: Outline design (perspective) requires less processing to display/ permits rapid previewing.
Costings – Allows a database of prices of materials to be created. The program can explore the cost of different options in a kitchen plan.
2D/3D, Layering, Library of symbols, wireframe, simulation, dimensioning, prototyping.