Course Objectives:
• To understand the language of graphics which is used to express ideas, convey instructions
while carrying out engineering jobs.
• To develop drafting and sketching skills, to know the applications of drawing equipments, and
get familiarize with Indian Standards related to engineering drawings.
• To develop skills to visualize actual object or a part of it, on the basis of drawings.
• To develop skills to translate ideas into sketches and to draw and read various engineering
curves, projections and dimensioning styles.
• To understand the basic commands and develop basic skills related to computer aided drafting,
of how to draw, modify, and edit basic shapes (2D), using AUTOCAD
Course Content
Unit – I Basic elements of Drawing
Drawing Instruments and supporting materials: method to use them with applications.
Convention of lines and their applications.
Representative Fractions – reduced, enlarged and full size scales; Engineering
Scales such as plain and diagonal scale.
Dimensioning techniques as per SP-46:2003 – types and applications of chain, parallel and
coordinate dimensioning.
Geometrical and Tangency constructions. (Redraw the figure)
Unit – II Orthographic projections
Introduction of projections-orthographic, perspective, isometric and oblique: concept and
applications. (No question to be asked in examination).
Introduction to orthographic projection, First angle and Third angle method, their symbols.
Conversion of pictorial view into Orthographic Views – object containing plain surfaces,
slanting surfaces, slots, ribs, cylindrical surfaces. (use First Angle Projection method only)
Unit – III Isometric Projections
Introduction to isometric projections.
Isometric scale and Natural scale.
Isometric view and isometric projection.
Illustrative problems related to objects containing lines, circles and arcs shape only.
Conversion of orthographic views into isometric view/projection.
Unit – IV Free Hand Sketches of engineering elements
Free hand sketches of machine elements: Thread profiles, nuts, bolts, studs, set screws, washer, Locking arrangements. (For branches other than mechanical Engineering, the teacher
should select branch specific elements for free hand sketching)
Free hand sketches of orthographic view (on squared graph paper) and isometric view (on
Unit – V Computer aided drafting interface
Computer Aided Drafting: concept.
Hardware and various CAD software available.
System requirements and Understanding the interface.
Components of AutoCAD software window: Title bar, standard tool bar, menu bar, object
properties tool bar, draw tool bar, modify tool bar, cursor cross hair. Command window, status bar, drawing area, UCS icon.
File features: New file, Saving the file, Opening an existing drawing file, Creating templates,
Quit.
Setting up new drawing: Units, Limits, Grid, Snap.
Undoing and redoing action.
isometric grid paper)
Unit – VI Computer aided drafting
Draw basic entities like Line, Circle, Arc, Polygon, Ellipse, Rectangle, Multiline, PolyLine.
Method of Specifying points: Absolute coordinates, Relative Cartesian and Polar coordinates.
Modify and edit commands like trim, extend, delete, copy, offset, array, block, layers.
Dimensioning: Linear, Horizontal Vertical, Aligned, Rotated, Baseline, Continuous, Diameter, Radius, Angular Dimensions.
Dim scale variable.
Editing dimensions.
Text: Single line Text, Multiline text.
Standard sizes of sheet. Selecting Various plotting parameters such as Paper size, paper
units, Drawing orientation, plot scale, plot offset, plot area, print preview.
SUGGESTED LEARNING RESOURCES
1. Bureau of Indian Standards. Engineering Drawing Practice for Schools and Colleges IS: Sp-46. BIS.
Government of India, Third Reprint, October 1998; ISBN: 81-7061-091-2.
2. Bhatt, N. D. Engineering Drawing. Charotar Publishing House, Anand, Gujrat 2010; ISBN: 978-93-
80358-17-8.
3. Jain & Gautam, Engineering Graphics & Design, Khanna Publishing House, New Delhi (ISBN: 978-
93-86173-478)
4. Jolhe, D. A. Engineering Drawing. Tata McGraw Hill Edu. New Delhi, 2010; ISBN: 978-0-07-
064837-1
5. Dhawan, R. K. Engineering Drawing. S. Chand and Company, New Delhi; ISBN: 81-219-1431-0.
6. Shah, P. J. Engineering Drawing. S. Chand and Company, New Delhi, 2008, ISBN:81-219-2964-4.
7. Kulkarni, D. M.; Rastogi, A. P.; Sarkar, A. K. Engineering Graphics with AutoCAD. PHI Learning Private Limited-New Delhi (2010); ISBN: 978-8120337831.
8. Jeyapoovan, T. Essentials of Engineering Drawing and Graphics using AutoCAD. Vikas Publishing
HousePvt. Ltd, Noida, 2011; ISBN: 978-8125953005.
9. Autodesk. AutoCAD User Guide. Autodesk Press, USA, 2015.
10. Sham, Tickoo. AutoCAD 2016 for Engineers and Designers. Dreamtech Press; Galgotia Publication,
New Delhi, 2015; ISBN 978-9351199113.
Software/Learning Websites
1. https://www.youtube.com/watch?v=TJ4jGyD-WCw
2. https://www.youtube.com/watch?v=dmt6_n7Sgcg
3. https://www.youtube.com/watch?v=_MQScnLXL0M
4. https://www.youtube.com/watch?v=3WXPanCq9LI
5. https://www.youtube.com/watch?v=fvjk7PlxAuo
6. http://www.me.umn.edu/coursesme2011/handouts/engg%20graphics.pdf
7. https://www.machinedesignonline.com
Course Outcomes
Following outcomes will be achieved:
1) Select and construct appropriate drawing scales, use drawing equipment’s, and understand Indian Standards of engineering drawing
2) Draw views of given object and components 3) Sketch orthographic projections into isometric
projections and vice versa.
3) Apply computer aided drafting tools to create 2D engineering drawings