DTME 101 Engineering Drawing

Syllabus

Curve PPT:


Unit-I
Uses of Drawing Aids: Drawing equipment instruments and materials, planning & layout of drawing, I.S. codes for planning & layout. Lines, lettering & dimensioning: Different types of lines, Vertical capital & lower case letters, inclined capital & lower case letters, Numerals & Greek alphabets. Dimensioning methods aligned method & unilateral with chain, parallel, progressive & combined dimensioning.

Drawing Equipment’s:

  Drawing board:

  Drawing sheet

  Mini-drafter/drafting machine/ T- sqaure

  Instrument box containing compass, divider, etc.

  Scales

  Protractor

  French curves

  Drawing pencils

  Eraser

  Drawing clip/pin/adhesive tape

  Sharpener

 https://theconstructor.org/construction/instruments-engineering-drawing/20067/

https://www.slideshare.net/mobile/shameem.mist/engineering-drawing

Types of Lines:


Lettering in Engineering Drawing: English Letters and Numbers

Dimensioning:

.
Unit-II
Engineering Curves: Construction of Polygons, Various types of curves like Ellipse, parabola,
hyperbola, cycloid, epicycloid, hypocycloid, Involute & spiral.

  1. Construction of Polygons:

A: Square:

When Side is Given:

When Diagonal is Given

Unit-III
Projections of Points, Lines & Planes: Reference planes, Orthographic projections, 1st Angle
and 3rd Angle projection, Projections of points, Projections of Lines- Determination of true
lengths & inclinations, Projections of plane- circular, square, rhombus, triangular, regular
Pentagonal & hexagonal plane surfaces, determination of true shape.
Unit-IV
Orthographic Projections: Simple Orthographic and Sectional Orthographic Projections of
simple machine parts. Isometric Projections: Difference between isometric projections &
isometric drawing, Isometric views & isometric projections.
Unit-V
Introduction to Computer Drafting: Introduction to different commands in the drawing
software.
Reference Books:

  1. Elements of Engg. Drawing – N.D. Bhatt
  2. Engineering Drawing – P.J. Shah.
  3. Fundamentals of Engg. Drawing – W.J. Luz Zadar.
  4. Fundamentals of Drawing – K.R. Gopal Krishna
  5. Fundamentals of Engg. Drawing – French & Vierck List of Practical’s:
  6. Three sheets on problems from geometrical constructions, lettering & types of lines
  7. Five Sheets on the topic of Engineering Curves.
  8. Four Sheets on Projections of Points & Projections of Straight Lines.
  9. Three Sheets on Projections of Planes.
  10. Five Sheets on the topic of Orthographic Projections.
  11. Demonstration of drafting software to the students.