Building cardboard models allows designers to test ideas and ensure proper fit and function before developing a full product. Key steps in building a model include marking dimensions on cardboard, cutting out parts, assembling with tape or glue, and testing proportions, ergonomics, and construction methods. Models help evaluate if components fit together correctly and identify needed design changes before investing further in development.

1. DEVELOPMENT
CARDBOARD MODELLING

2. At the end of
the lesson..
 Students are able to:
1. Understand what models are and how they are
useful in developing an idea
2. Understand how to mark out on cardboard

3. So you have an
idea..What
next?

4. Development Process
Critical dimensions

5. Build a model
What is the purpose of building a model?
1. Test the function/s of the product
2. Finding out if the parts fit well
3. Evaluating the proportions of design
4. Checking if ergonomics considerations are acceptable
5. Evaluating construction methods of safety of design

6. 1.
Test the
function of the
product
For example, one of the functions of a product is that it
has wheels and are able to move on the ground smoothly.
By making a model, the designer is able to test out the
product to ensure that the product moves smoothly.
Fixing the wheels so that
they touch the ground
evenly
What happens to the product if
the wheels are misaligned?

7. 2.
Finding out if
the parts fit
well
Do the parts fit well?
Are the dimensions of
the parts correct so that
they fit well when
assembled?

8. 3.
Evaluating the
proportions of
design
• Can your product fit the mobile phone to the right proportion?
• Should your product be bigger or smaller than the phone?

9. 4.
Checking if
ergonomic
considerations
are acceptable
1. Should my product have
sharp edges?
2. Is my product safe or
comfortable to use?

10. 5.
Evaluating
construction
methods of
safety of
design
Some of the things needed for
cardboard modelling includes:
1. Masking tape
2. Scissors
3. Glue
4. Glue Gun
5. Pencil
6. Ruler
7. Penknife
Which method is most suitable for
your product?

11. Recap  Why do we build a
model?
1. Test the __________of the
product
2. Finding out if the _______ fit
well
3. Evaluating the _____________
of design
4. Checking if _____________
considerations are acceptable
5. Evaluating ____________
methods of safety of design

12. Lets start to
build a model!
Here are the stages to build a model:
1. Marking out on cardboard using pencil and ruler
2. Writing down the dimensions on the cardboard with
pencil
3. Cutting out parts using penknife, scissors and a backing
board
4. Assemble parts using glue gun, masking tape
5. Test out the product
6. Take photos of the product of what went well and what
didn’t
7. Identify and record the changes in journal

13. 1. Marking out
on cardboard Live Demonstration