Anupam SaxenaAssociate Professor

Mechanical EngineeringCompliant and Robotic Systems Lab

Indian Institute of Technology Kanpur

TA 101

Technical Arts

TA 101

Think and Analyze

Anupam SaxenaAssociate Professor

Mechanical EngineeringCompliant and Robotic Systems Lab

Indian Institute of Technology Kanpur

only through GEOMETRY

long, long, very long time ago…

but not that long ago…

people expressed their IDEAS through

Sketches and paintings…

How ART got formalized !

Bhim Betika, Bhopal

ALL PERIODS (accessed by cave dwellers)Upper Palaeolithic (50-100, 000 years ago), Mesolithic (10, 000 years ago), Chalaeolithic (barter system in existence with agricultural commodities)Early historic (schematic, decorative, in red white and yellow)Medieval (geometric linear, manganese haemitite red stone, wooden coal used)

Srilanka, 5th Century Ajanta Caves, 5th Century Ancient Egypt, 5000 years

Long before words were written, thoughts were painted on the walls of caves, Reeva Kimble

Chauvet Caves, France, 30, 000 yearsToquepala Caves, Peru, 6, 000 years

Pompeii, 2000 years Pompeii, 1st Century

China, Tang Dynasty (580 - 900)

Sistine Chapel

Sculptures in Rome

Ancient Monuments

Arial Plan

maps.google.com

Arial Plan

R BalasubramaniumArchaeo-metallurgist

(great Reseacher, Drummer, Spanish Guitar, Base Guitar, Cricketer)

Gustave Eiffel: Engineering

Garabit Viaduct, Railway

Eifel Tower

Railway Station, Budapest Maria Pia Bridge

Statue of Liberty

Iron House, Peru

More than 65 buildings and bridges in Europe and elsewhere

Bottomline

• ‘DESIGNERS’ may have been a single person or a team of few

• ‘DESIGNERS ’ were ‘multi-faceted’ – they practised many other avocations out of ‘Choice’

• Design HAD TO BE COMMUNICATED to those building it (‘MANUFACTURERS’)

• COMMUNICATION could have been possible only through ‘SKETCHES’ or ‘DRAWINGS’

Gaspard Monge, 1746-1818

Engineer in French Military

Inventor of ‘descriptive geometry’

Pictures, sketches were used to communicate butdidn’t have any uniformity

Architects, builders, engineers, designers had difficulty in understanding figures

One could draw figures in various ways

Monge formalized the TECHNICAL drawings,what we know as ORTHOGRAPHIC PROJECTIONS.

The scheme was quickly adopted by army Engineers, and after the war, it was accepted worldwide and formed the back bone for INDUSTRIAL REVOLUTION

OBJECTIVE: To Learn TECHNICAL DRAWING in THEORY and PRACTICE using drafting tools and free hand sketches

Organization of Lectures and Laboratory AssignmentsTopic Week (No. of Lectures) Lab

Intro and Basic Constructions Week 1 (2)

Orthographic Projections Week 2 (2) Lab 1

Orthographic Projections Week 3 (2) Lab 2

Isometric Projections Week 4 (2) Lab 3

Missing Views Week 5 (2) Lab 4

Sectional and Assembly Week 6 (2) Lab 5

Oblique Projections Week 7 (2) Lab 6

Perspective Projections Week 8 (2) Lab 7

Lines and Planes Week 9 (2) Lab 8

Lines and Planes Week 10 (2) Lab 9

Auxiliary Projections Week 11 (2) Lab 10

Intersection of lines/planes/solids

Week 12 (2) Lab 11

Intersection and Development Week 13 (2) Lab 12

TOTAL 26 Lab 13

Venue

• Lectures: – L7 (Tuesday 3-4 PM, Thursday, 2-3 PM)

• Labs: – M, T, W, Th (1000-1300) (800-1100 on T)– Drawing Halls (NL extension)

• CAD Lab: New IME Building, 3rd floor

Groups and TutorsGroups Tutors

MONDAYDr. Vinod Tare

(vinod@)Sanjeev Kumar

(sanjeevk@)Sunit

(sunitgpt@)

TUESDAYDr. Vinod

Vasudevan (vinodv@)

Dr. P. Venkitnarayan (venkit@)

V M K Kotteda, (muralik@)

WEDNESDAYMr. Vivek B. (bvivek@)

Dr. Tarun Gupta (tarun@)

Dr. Mukesh Sharma (mukesh@)

THURSDAYDr. Bhaskar Dasgupta

(dasgupta@)

David Kumar, (david@)

Dr. Abhas Singh (abhas@)

Grading Policy

Lab Assignments: 25 %

Home Assignments: 15 %

Mid Semester Exam: 20 %

End Semester Exam: 40 %

TOTAL: 100%

Text and Notes

Lecture Notes home.iitk.ac.in/~anupams under COURSES (main menu), COURSE 2

MANUAL for LAB and HOME assignments COPY POINT

Drawing material and books(A3, A4 drawing sheets, sketch book, grid

book)

Nobel or Tarun Book store

French, T. E., Vierck, C. J., Foster, R. J., Graphics Science and Design. Tata McGraw, 2012

Bhatt, N. D., Elementary Engineering Drawing, CharoterPublishing, Anand, Thirty First Edition, 1990

Equipment Required

H for drawing2H for construction lines

AVOID HB

Very Important

• All labs on A3 DRAWING SHEETS

• All homeworks on A3 drawing sheets

• All sketches in Sketchbook

• GRID BOOK for proportional sketches

ANUPAM SAXENATA101 LECTURE I

PERPENDICULARS TO AND FROM A LINE

L

Q

Point not on a line

L

Q

R

R1 R1

Point on a line

LQ

R

R1 R1

R

LQ

C

A

M

R

ANUPAM SAXENATA101 LECTURE II

PERPENDICULARS TO AND FROM A LINE

L

Q

ANUPAM SAXENATA101 LECTURE I

ARC TANGENTS TO LINES AND ARCS

R

L

C

R

L‘

R1

R1 + RR

ANUPAM SAXENATA101 LECTURE I

ARC TANGENTS TO LINES AND ARCS

R1 R2

R1 + RR2 + R

R1 R2R – R1

R – R2

R

R

L

L‘R

ANUPAM SAXENATA101 LECTURE I

LINE AND ANGLE BISECTORS

L

ANUPAM SAXENATA101 LECTURE I

LINE AND ANGLE TRISECTORS

L

Keep Thinking and Analyzing

Until next time...