Anupam Saxena Associate Professor Mechanical Engineering Compliant and Robotic Systems Lab Indian Institute of Technology Kanpur TA 101 T echnical A rts

TA 101 T hink and A nalyze Anupam Saxena Associate Professor Mechanical Engineering Compliant and Robotic Systems Lab Indian Institute of Technology Kanpur only through GEOMETRY

Introduction and Overview

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 years Toquepala Caves, Peru, 6, 000 years

Pompeii, 2000 yearsPompeii, 1st Century China, Tang Dynasty ( )

Sistine Chapel

Sculptures in Rome

Ancient Monuments

Arial Plan maps.google.com

Arial Plan

R Balasubramanium Archaeo-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, Engineer in French Military Inventor of ‘descriptive geometry’ Pictures, sketches were used to communicate but didn’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 Assignments TopicWeek (No. of Lectures)Lab Intro and Basic ConstructionsWeek 1 (2) Orthographic ProjectionsWeek 2 (2)Lab 1 Orthographic ProjectionsWeek 3 (2)Lab 2 Isometric ProjectionsWeek 4 (2)Lab 3 Missing ViewsWeek 5 (2)Lab 4 Sectional and AssemblyWeek 6 (2)Lab 5 Oblique ProjectionsWeek 7 (2)Lab 6 Perspective ProjectionsWeek 8 (2)Lab 7 Lines and PlanesWeek 9 (2)Lab 8 Lines and PlanesWeek 10 (2)Lab 9 Auxiliary ProjectionsWeek 11 (2)Lab 10 Intersection of lines/planes/solids Week 12 (2)Lab 11 Intersection and DevelopmentWeek 13 (2)Lab 12 TOTAL26Lab 13

Venue Lectures: – L7 (Tuesday 3-4 PM, Thursday, 2-3 PM) Labs: – M, T, W, Th ( ) ( on T) – Drawing Halls (NL extension) CAD Lab: New IME Building, 3 rd floor

Groups and Tutors GroupsTutors MONDAY Dr. Vinod Tare Sanjeev Kumar Sunit TUESDAY Dr. Vinod Vasudevan Dr. P. Venkitnarayan V M K Kotteda, WEDNESDAY Mr. Vivek B. Dr. Tarun Gupta Dr. Mukesh Sharma THURSDAY Dr. Bhaskar Dasgupta David Kumar, Dr. Abhas Singh

Grading Policy Lab Assignments: 25 % Home Assignments: 15 % Mid Semester Exam: 20 % End Semester Exam: 40 % TOTAL: 100%

Text and Notes Lecture Noteshome.iitk.ac.in/~anupamshome.iitk.ac.in/~anupams under COURSES (main menu), COURSE 2 MANUAL for LAB and HOME assignmentsCOPY 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, Charoter Publishing, Anand, Thirty First Edition, 1990

Equipment Required H for drawing 2H 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 SAXENA TA101 LECTURE I PERPENDICULARS TO AND FROM A LINE L Q Point not on a line L Q R R1

Point on a line L Q R R1 R L Q C A M R ANUPAM SAXENA TA101 LECTURE II PERPENDICULARS TO AND FROM A LINE

L Q ANUPAM SAXENA TA101 LECTURE I ARC TANGENTS TO LINES AND ARCS R L C R L‘ R1 R1 + R R

ANUPAM SAXENA TA101 LECTURE I ARC TANGENTS TO LINES AND ARCS R1 R2 R1 + R R2 + R R1 R2 R – R1 R – R2 R R L L‘ R

ANUPAM SAXENA TA101 LECTURE I LINE AND ANGLE BISECTORS L

ANUPAM SAXENA TA101 LECTURE I LINE AND ANGLE TRISECTORS L

Keep T hinking and A nalyzing Until next time...