ta101 2014 l3
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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
l
2l
d
q ?
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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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
x
y
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ANUPAM SAXENATA101 LECTURE III
THE FIRST STEP TO COMPREHENSION
x
z
x
y
z
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
z
x
y
z
ANUPAM SAXENATA101 LECTURE III
THE FIRST STEP TO COMPREHENSION
y
z
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?
xy
xz
yz
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
sketchsketch
sketchsketchsketchsketchsketch
sketchsketch
sketch
ANUPAM SAXENATA101 LECTURE IIITHE FIRST EXAMPLE
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ANUPAM SAXENATA101 LECTURE IIITHE FIRST EXAMPLE
10080
20
20
25
20
60
50
40
12
Keep Thinking and Analyzing
Until next time...