Digitial Design

Question 1

Advantages of CAD

Answer 1

Speeds up the design process, editing ability makes it much more convenient than redrawing, easier to work collaboratively, completed designs can be sent anywhere

Question 2

Disadvantages of CAD

Answer 2

Expensive initial set up, expensive software updates, not easy to use for quick sketches, requires specialised staff

Question 3

What is CAM

Answer 3

Software that downloads CAD drawings and cuts them using a machine

Question 4

What is laser cutting

Answer 4

High energy laser beam os used to cut materials, leaving a clean edge, can cut any material

Question 5

What is virtual modelling

Answer 5

Used to test models before manufacture, checks if certain components fit, and which components can be removed later on - can check if a product can be machined easily / correctly

Question 6

What is CFD / computational fluid dynamics

Answer 6

Stimulates the flow of fluids and gases around a product, designers use this to improve the aerodynamics of a product, saves money as you don’t have to spend money on a prototype and then additional wind tunnels

Question 7

What is FEA / finite element analysis

Answer 7

Carries out stress analysis on a virtual model, simulates vibrations and shock loads pointing out weak points in a product, allowing further development