Chapter 3 Communicating Design Ideas
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The three basic types of communication technology are based on
human hearing and sight.
Many different forms of communication can be used to relay the
same message.
Design sketches can be isometric or perspective sketches. The
purpose of a sketch determines which type you draw.
Drawings created using orthographic projection contain all the views
and information necessary to manufacture an object.
Developing drawing techniques such as using the correct types
of lines, dimensioning, and scaling drawings helps more people
understand the message you want to convey.
Freehand sketching remains an important skill for designers. However,
computer-aided design (CAD) has replaced most types of manual
drafting because it is faster and more accurate. Drawings and parts of
drawings can also be reused, making this an efficient drafting process.
Concurrent engineering is an efficient product development process
in which all of the members of the design, development, and
manufacturing teams are in communication from the very beginning
of the project.
3D printing allows designers to experiment with prototypes. It also
allows manufacturers to make low quantities of parts quickly and at
a relatively low cost.
Preview and Prediction
Copy the following graphic organizer onto a separate sheet of paper.
In the left column, record at least six predictions about what you will
learn in this chapter. After you have read the chapter, fill in the other two
columns of the chart.
What I Predict
I Will Learn
What I Actually Learned How Close Was
My Prediction?