Engineering Drawing and Graphics, Manual Drafting, Computer Aided Drafting, Manual Drafting Tools, Letterring, Dimensioning and Geometical Constructions

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BASICS OF ENGINEERING
GRAPHICS
Prof.T.JEYAPOOVAN
Department of Mechanical Engineering
Hindustan Institute of Technology and Science
Chennai-603103, India

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Engineering Graphics
• Engineering Drawing and Graphics
deals with the preparation of technical
drawings for Engineering components
like Machine parts and Buildings.
• All Engineering Drawings are prepared
in Manual Drafting or Computer Aided
Drafting.

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Manual Drafting Tools
• Mini Drafter
• Instruments Box
• Set Squares
• Protractor
• Pencils (HB, H, 2H)
• Eraser

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ComputerAided Drafting
Tools
• Computer
– High Resolution
Monitor display
– RAM 2GB or More
– Graphics card
• Software
– AutoCAD
• Plotter/Laser Printer

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Lettering
• Letters, numbers and special characters are
printed as follows

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Dimensioning
• All dimensions in a drawing are clearly
printed using the lettering practice.

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Drawing Sheet Layout
• Layout of drawing sheet shows the title
block and border lines as given below.

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Drawing Sheet Title Block
• Title block of a drawing sheet has title of
drawing and other details as given below.

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Printing/Lettering
• Print the following sentence in 10 mm
capital and 5 mm lowercase letters.

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Draw an Equilateral Triangle
• Construct an equilateral triangle of side 40mm

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Draw a Square
• Construct a square of side 40 mm.

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Draw a Pentagon
• Construct a pentagon of side 30 mm.

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Draw a Hexagon
• Construct a Hexagon of side 30 mm.

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Draw a Circle
• Construct a Circle of diameter 40 mm.

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REFERENCE BOOKS
1. Jeyapoovan T, “Lesson Plans for Engineering
Graphics”, 2010, Vikas Publishing House Pvt
Ltd, New Delhi.
2. Jeyapoovan T, “Engineering Drawing and
Graphics”, 2011, Vikas Publishing House Pvt
Ltd, New Delhi.

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End of Basics of EG
ThankYou