ta101 2014 l3

TA 101

Think and Analyze

Anupam SaxenaAssociate Professor

Mechanical EngineeringCompliant and Robotic Systems Lab

Indian Institute of Technology Kanpur

ANUPAM SAXENATA101 LECTURE II

CONSTRUCTION OF ELLIPSE: FOUR CENTER METHOD

C1

C2

C3

C4

30

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2l

d

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ANUPAM SAXENATA101 LECTURE II

CONSTRUCTION OF ELLIPSE: FOUR CENTER METHOD

C1C2

C3

C4

30

120

ANUPAM SAXENATA101 LECTURE II

CONSTRUCTION OF ELLIPSE: FOUR CENTER METHOD

C1

C2

C3

C4

30

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 12

ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

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y

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ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

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ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

x

y

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ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

x

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x

y

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ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

x

y

z

ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

x

y

x

y

z

ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

x

y

z

ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

y

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x

y

z

ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

y

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x

y

z

ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

TA: First Exercise on Orthographic Views

ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

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TA: What Angle is this?

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xz

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ANUPAM SAXENATA101 LECTURE III

THE FIRST STEP TO COMPREHENSION

TA: Given the views, can one UNIQUELY determine the 3d Object?

xy

xz

yz

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

ANUPAM SAXENATA101 LECTURE IIITHE FIRST EXAMPLE

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sketchsketch

sketch

ANUPAM SAXENATA101 LECTURE IIITHE FIRST EXAMPLE

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ANUPAM SAXENATA101 LECTURE IIITHE FIRST EXAMPLE

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Keep Thinking and Analyzing

Until next time...