This document provides an introduction and overview of engineering graphics. It discusses the importance of engineering graphics in communicating engineering ideas and keeping records of the design process. The document outlines the modules to be covered, including orthographic projections, projections of solids, sections, developments of surfaces, and isometric projections. It also describes the different types of projections, drawing methods, instruments, line conventions, lettering, dimensioning, principal planes, rotation of planes, quadrants, and first and third angle projections that are key aspects of engineering graphics.

1. I 1
Introduction to Engineering
Graphics
18EGDL15
Engineering Graphics
● Its Importance in Engineering

2. Importance of Studying Engineering Graphics
Engineering Graphics 18EGDL15/25
Language of Engineers
Communicating your ideas
Mr. HARISH BABU L, SSCE, Anekal

3. Technical drawing allows efficient
communication among engineers and can be kept as a
record of the planning process.
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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

4. Engineering drawing, most commonly referred to as engineering graphics, is the art
of manipulation of designs of a variety of components, especially those related to
engineering.
It primarily consists of sketching the actual component, for example a machine, with its
exact dimensions. The scale of dimensions is suitably adjusted so as to properly fit
within the contours of the drawing sheet.
Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

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Module-1 Introduction to Computer Aided Sketching
Module-2 Orthographic projections
Module-3 Projections of Solids
Module-4 Sections And Development of Lateral Surfaces of Solids
Module-5 Isometric Projection (Using Isometric Scale Only)
Syllabus
Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

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Perspective Projection:
Orthographic Projection:
Isometric Projection:
Types of Projection
Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

8. • DRAWING METHODS
Computer Aided
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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal
Manual

9. DRAWING INSTRUMENTS
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The Instruments and other aids used in
drafting work are listed below:
Drawing board
Set squares
French curves
Templates
Mini drafter
Instrument box
Protractor
Set of scales
Drawing sheets
Pencils
Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

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Drawing Sheet
Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

11. Different Types of Lines
Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

12. • LINE CONVENTIONS
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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

13. LETTERING
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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

14. Dimensioning
Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

15. Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

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PRINCIPAL PLANES OF ORTHOGRAPHIC PROJECTION
 Vertical Plane (VP)
 Horizontal Plane (HP)
 Profile Plane (PP)
Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

18. • ROTATIONOF PLANES
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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

19. FOUR QUADRANTS
A point may not always lie in front of VP and above HP.As we extend
the planes beyond their line of intersection we get four quadrants
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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

20. FOUR QUADRANTS
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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

21. • FIRST & THIRD ANGLE PROJECTION
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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

22. COMPARISON
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Engineering Graphics 18EGDL15/25
Mr. HARISH BABU L, SSCE, Anekal

23. Engineering Graphics 18EGDL15/25
Drawing is the process of communicating ideas to others in the form that can be understood
easily.
Engineering Design is a systematic process by which solutions to the needs of humankind are
obtained.
Design is the act of creating the specification for a product or the process that best satisfies
the design criteria.
Mr. HARISH BABU L, SSCE, Anekal