Paper Two: Advancements in CAD/CAM

Question 1

advancements in CAD/CAM:

standardised file format

Answer 1

• eg .stl (3D), .dxf (2D)

- connect CAD/CAM processes for a wide range of software & hardware

Question 2

advancements in CAD/CAM:

3D printing

Answer 2

• models can be printed from CAD files
• materials include resins & thermoplastics
• facilitate short timescale testing of a series of design iterations that can be used to get feedback

Question 3

advancements in CAD/CAM:

extensible markup language (MXL)

Answer 3

• improved file compatibility for a growing number of different software packages

Question 4

advancements in CAD/CAM:

FEA & CFD

Answer 4

• simulate impact of decisions being made at the design stage to make improvements
• saves time, materials & money on testing physical prototypes

Question 5

advancements in CAD/CAM:

cloud based CAD/CAM software packages

Answer 5

• accessible from any computer
• improves designers’ productivity & independence
• facilitates growth of mass customisation

Question 6

advancements in CAD/CAM:

VR systems incorporating 3D headsets & haptic (sensory) feedback

Answer 6

• realistic appraisal of virtual designs in their intended environment
• additional CAD tools

Question 7

rapid prototyping (summary of benefits) (5)

Answer 7

• 3D block models can be created directly from 3D CAD models
• can print with a wide range of materials (incl resin & thermosetting polymers)
• CAD models can be tested before printing
• can be replicated many times after feedback
• range of iterations of the product, much shorter timespan than handmade models