TA 101TA 101Engineering GraphicsEngineering GraphicsEngineering GraphicsEngineering Graphics

Dr. N. R. Patra, Civil Engineering2011-12 Semester I

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

20 2 Se este July – Nov 2011

Course OBJECTIVECourse OBJECTIVET l b i f E i i D i• To learn basics of Engineering Drawing– Advanced topics of Engineering Drawing

i th in other courses• Civil Engineers

• Mechanical Engineers• Mechanical Engineers

• Mathematics

• Physics y

• …

Course ContentsCourse ContentsI t d ti t th C• Introduction to the Course

• Basics of Engineering Drawing– Need

– Tools• Drawing Paper

• Pencils

• Drafter

• Set squares

• French Curves• French Curves

– Lettering and Drawing

Geometric Constructions

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

– Geometric Constructions

Course ContentsCourse ContentsO th hi P j ti• Orthographic Projections– Introduction

– Projections of Objects• Isometric projections & drawing

P ti j ti• Perspective projections

– Principles of Dimensioning

S ti l i– Sectional views• Machine Part Assemblies

Course ContentsCourse ContentsS G t• Space Geometry– Development of lateral surfaces of simple solids

– Lines and Planes• Auxiliary views

T l h d h– True lengths and shapes

– Intersection of Lines and planes

– Intersections of solids

• Computer-based Graphics – Laboratory classb y

Contact HoursContact HoursE h k• Each week

Hours

L t 2Lecture 2

Tutorial 1

D i Cl 2Drawing Class 2

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Time TableTime TableW kl b i• Weekly business– Finish each weeks activities within that week

• Engineering Graphics is a practice – oriented course.• Emphasis on Laboratory Exercises and Home Assignment• Lectures: To give some basic concepts and instructions for

Laboratory Exercises and Home Assignments.

Lectures: MW 10:00 – 10:55, L17

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Time TableTime Table• The class has been divided into 8 sections• The class has been divided into 8 sections

(F1 – F8). Each section has ~40 students.

A t t ill b i d f h ti• A tutor will be assigned for each section.

Laboratory Classes from August 1st 2011(Monday) Venue: Drawing Hall

M: Sections F1, F2 and F3M: Sections F1, F2 and F3W: Sections F4, F5 and F6

Thu: Sections F7, F8

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

What is Mandatory?What is Mandatory?

Instruction Manual

(Containing all Laboratory

and Home Assignments)and Home Assignments)

A il bl iAvailable in

Copy Point

Shopping CentreShopping Centre

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Drawing Instruments and Materials

• Instrument box containing the following minimum items:A large compass– A large compass

– A bow compass with adjusting screws (100 mm)– A large divider

A bow divider with adjusting screws (100 mm)– A bow divider with adjusting screws (100 mm)• A good quality drafter• A pair of set-squares: 45-450, 30-600 (250 mm, 2.5 mm thick)

A t t• A protractor• A scale, 300 mm (steel or hard plastic)

A il bl iAvailable in:

Tarun Book StoreShopping Center, IIT Kanpur

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

pp g , p

Drawing Instruments and MaterialsDrawing Instruments and Materials

• Good quality drawing pencils (2H H HB) and lead (H or HB) for compass• Good quality drawing pencils (2H, H, HB) and lead (H or HB) for compass

• A sharpener, good quality eraser, sand paper and a clean soft cloth

• A sticking tape (cello-tape)

• Two files: green for laboratory assignment, pink for home assignment

• Two pads: 1) plain A4 size, 2)A4 size graph sheet

• Five A3 size drawing sheetsg

• One ‘backing sheet’ (preferably black in color).

Available in:

Tarun Book Store

Shopping Center, IIT Kanpur

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Drawing Instruments and MaterialsDrawing Instruments and MaterialsD i P• Drawing Paper– Standard paper in India

A i• A-series Constant aspect ratio

1

√2nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

√2

Drawing Instruments and MaterialsDrawing Instruments and MaterialsD i P• Drawing Paper…– Standard paper in India…

A i• A-series A0, A1, A2, A3, A4, …

Each size following has half the area of the previous sizeg p Area of A0 = 1 m2 841mm × 1189mm

Area of A1 = 0.5 m2 594mm × 841mm

Area of A2 = 0.25 m2 420mm × 594mm

Area of A3 = 0.125 m2 297mm × 420mm

Area of A4 = 0.0625 m2 210mm × 297mm …

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Drawing Instruments and MaterialsDrawing Instruments and MaterialsD i P• Drawing Paper…– Standard paper in India…

A i• A-series One dimension common for subsequent sizes

A2A3A4

A0A1

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Drawing Sheet

I I T KANPURI.I.T. KANPURTA101 – ENGINEERING GRAPHICS

NAME: ROLL NO. ******

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

SIGNATURE DATE: SECTION:

Title Block

I.I.T. KANPUR 10 mm

8 mm

8 mm8 mm

NAME: ROLL NO. ******

SIGNATURE DATE: SECTION

8 mm

8 mm

SECTION: 120 mm

Draw Guidelines 2 mm from the top and bottom

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Types of Pencil LeadsTypes of Pencil Leads

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Drawing ScalesDrawing Scales

DimensionLinearActualingCorrespondDrawingthe in DimensionLinear

nmScale

Full Size 1 : 1

DimensionLinear ActualingCorrespondn

Full Size 1 : 1

Enlarged Scales: 50:1; 20:1; 10:1; 5:1; 2:1Enlarged Scales: 50:1; 20:1; 10:1; 5:1; 2:1

Reduction Scales: 1:2; 1:5; …………….1:10000Reduction Scales: 1:2; 1:5; …………….1:10000

Dimensions are always in mm in engineering drawings

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

(unless otherwise stated)

Tutors & InstructorTutors & InstructorSec Name Dep Email PhoneSec. Name Dep. Email Phone

F1 Prof. D. Yadav AE dy 7951

F5 Prof. A. Kumar CE ashwini 7756F5 Prof. A. Kumar CE ashwini 7756

F4 Prof. M. Sharma CE mukesh 7759

F8 Prof. T. Gupta CE tarun 7128p

F3 Prof. A Saxena ME anupams 7397

F7 Prof. A. Datta ME adutta 7562

F6 Prof. S. Mahesh ME sjmahesh 6087

F2 B. Y. Ganpat AE bhumkar 9305363026

I P f N R P t CE t 7623

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Ins. Prof. N.R. Patra CE nrpatra 7623

EvaluationEvaluationMarksMarks

• Class Work 20

• Examinations– Mid-Semester 30

– End Semester 45

• Home Work 05

EvaluationEvaluationMarksMarks

• Tutorial Hours– Last Weeks Homework Sheet Questions

– This Weeks Classwork Sheet Questions These will be related

Last Week

Homework

This Week

nrpatra@iitk.ac.in :: TA101 :: 2011-12 IClasswork

BooksBooks• References• References

– French,T.E., Vierck,C.J., and Foster,R.J., Graphics Science and Design, McGraw Hill Book Company. New York, Fourth Edition, 1984

– Bhatt,N.D., Elementary Engineering Drawing, Charoter Publishing, Anand, Thirty First Edition, 1990

– French,T.E., Vierck,C.J., and Foster,R.J., Engineering Drawing and Graphic French,T.E., Vierck,C.J., and Foster,R.J., Engineering Drawing and Graphic Technology, McGraw Hill International, Singapore, Thirteenth Edition, 1987

– Luzadder W J and Duff J M Fundamentals of Engineering Drawing Luzadder,W.J., and Duff,J.M., Fundamentals of Engineering Drawing, Prentice Hall India, New Delhi, Eleventh Edition, 1983

– Bethune,J.D., Engineering Graphics with AutoCAD, Prentice Hall, Englewood Cliffs First Edition 1995Englewood Cliffs, First Edition, 1995

– Sidheswar,P., Kannaiah,P., and Sastry,V.V.S., Machine Drawing, Tata McGraw Hill Publishing Company Ltd., 1996

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Material related to TA101Material related to TA101

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Regularly for materials related to TA101N

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InstructionsInstructionsT h i l• Technical…

• Carefully plan the layout of the drawings on the sheet Place & arrange various drawings and their parts Place & arrange various drawings and their parts

for pleasing view

F ll THIRD ANGLE PROJECTION h • Follow THIRD ANGLE PROJECTION scheme unless specifically stated otherwise Place this symbol in the Title Block

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

InstructionsInstructionsT h i l• Technical…

• Choose appropriate scales for drawings in an exercise Can be different for different questions Can be different for different questions

Scale of any exercise should be such that all details of the object are clearly visible in the views Scale used should be clearly written (e g scale 1:5) Scale used should be clearly written (e.g., scale 1:5).

• If all questions of an assignment cannot be accommodated on a single side of the given A1 drawing sheet Use the reverse side.

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

InstructionsInstructionsT h i l• Technical…

• Use good quality pencilsWood pencilsWood pencils

Sharpening required

Lines not uniform

Clutch pencils (or mechanical pencils) No sharpening required

Lines uniform

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

InstructionsInstructionsT h i l• Technical…

• Use good quality pencil leads Grade 2H pencil :: Construction lines & projectors Grade 2H pencil :: Construction lines & projectors

HatchingDimension lines

Grade H pencil :: Objects lines Grade H pencil :: Objects lines Lettering

Grade HB pencil :: LetteringSketchingSketching

Grade 2B pencil :: Free hand sketching (artistes!!)

• Intensity of lines Depends on the PRESSURE applied by the pencil

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

InstructionsInstructionsT h i l• Technical…

• Don’t borrow and/or exchange drawing instruments and materials during drawing classesmaterials during drawing classes Disturbs the rhythm of drawing of yours/your fellow classmates’

l ll d Strictly not allowed in exams Get used to it in regular drawing classes

nrpatra@iitk.ac.in :: TA101 :: 2011-12 I

Have a Great Day!!Have a Great Day!!