CAD

Question 1

Benefits of using CAD

Answer 1

time efficient, lower cost as reduces development times, can be used as a team, flexibility, can be easily modified with client feedback, components can be tested, electrically transferred - around the world,

Question 2

What are the benefits to computer-aided engineering

Answer 2

computer simulation analyse designs so test programs are used to find efficient production and minimum waste. Virtual manufacturing systems = inexpensive, short time to create, safe, repeatable

Question 3

Benefits to CAM

Answer 3

faster production process, more precise dimensions, material consistency, minimises waste and reduces energy consumption

Question 4

What are the types of CAM

Answer 4

CNC routing, laser cutting, rapid prototyping - stereolithography, selective laser sintering

Question 5

CNC routing definition and pros

Answer 5

a spinning blade is used to cut and carve a material into a desired shape
Pros - can produce a one-off item as effectively as a repeated identical production

Question 6

Laser cutting definition and pros

Answer 6

a laser is moved over a material on a controlled path to cut or engrave
Pros - rapidly produce effects that would be very time-consuming

Question 7

Rapid prototyping definition and pros

Answer 7

use of newer technologies means that in easier stages making a model can be done in a few hours instead of weeks. Pros - it can be reviewed quickly after initial design and developments can be made faster and to a higher quality. Minimum wastage. Can be made from a variety of materials

Question 8

Rapid prototyping - Stereolithography (SLA) definition, pros and cons

Answer 8

process which makes liquid plastic into a 3D solid object. Has a tank of liquid plastic and a platform is lowered and UV light hardens the plastic.
Pros - smooth surfaces, highly accurate, relatively inexpensive, can print all shapes
Cons - larger prints can take days

Question 9

Rapid prototyping - Selective laser sintering (SLS) definition

Answer 9

tiny particles of plastic, ceramic or glass are fused together by heat from a laser to make 3D.
Pros - additional supports are not needed, more types of materials, high quality
Cons - expensive