The document discusses different modeling techniques used during the design process including concept models made from inexpensive materials to test construction ideas, block models cut from materials like polystyrene to test ergonomics and aesthetics, prototype models that are working models at full scale using actual production materials to fully test all design aspects, and 3D computer models that can be easily rotated, modified and rendered to look realistic.

1. S3 Craft & Design
Modelling Techniques

2. Concept Model
Made quickly.
Using inexpensive
materials:-
Polystyrene board
Balsa wood
Cardboard
Usually tests the
construction.
To work out how the design
might be manufactured.
May only test a small part of
the design such as a joint.
S.Watson

3. Block Model
Often cut from a solid block
of polystyrene, balsa wood
or clay.
Often painted.
Details are added such as
switches or buttons.
New mobile phones may be
modelled this way to test
the ergonomics and
aesthetics of the design.
S.Watson

4. Prototype Model
This is a working model.
Usually the actual size.
Made from the same
materials as the full
production product.
Test all aspects of
design:-
Ergonomics.
Aesthetics.
Manufacture.
Assembly.
Function.
S.Watson

5. 3-D Computer Model
They can be rotated to be
viewed from any angle.
They can be rendered to
look realistic.
Quick to produce.
Cheap to produce.
Can be modified easily.
S.Watson