Introduction To Engineering
Communication by Sketching and Isometric
Pictorials - 1
Agenda
 Understand graphics as a
communication tool
 Make a first 3-D and 2-D sketch
Reference Materials
Introduction to Graphics
Communication for Engineers (IGCE)
by G. R. Bertoline
1st Chapter – Introduction to Graphics
Communications
2nd Chapter – Sketching and Text
(through Section 2.4.1 for today)
Attempt in teams of two persons to describe the
part below in words only. Write your description on
a sheet of paper.
Q: Would this be an effective way to tell
someone how to build this part?
Chap 1 Topics to Note
Reasons for Technical Drawings
Tools for Technical Drawing
Traditional
Computer Based
Alphabet of Lines
Chap 2 Sketching and Text
Types of Technical Drawings
Advice on Freehand Sketching
Introduction to Projections
Three Basic Types of Technical Drawings
Freehand sketches
Instrument drawings
Computer drawings and models
Advice on Freehand Sketching
Orient paper to be comfortable
Mark end points of the lines to be
sketched
Relax and draw in direction comfortable to
you
Draw long lines as a series of short lines
Use grid paper when available
Introduction of Projections: Our challenge
is to present 3-D objects with 2-D media
Two Basic Categories
Multi-view
Pictorial
Assignment A: First Sketch
 On a plain sheet of paper
Sketch a multiview (front, top, & right side) drawing of
the object in slide #3
Sketch an isometric drawing of the object in slide #3
TOP
FRONT
RIGHT
SIDE