This document discusses the development of various surfaces and solids using different methods. It provides instructions for developing a prism and cylinder using parallel line development, where corresponding sides are drawn parallel to their original position. It also demonstrates developing a pyramid and cone using radial line development, where lines radiate outward from the central vertex. Diagrams illustrate each development technique along with annotations labeling corresponding points. The document is authored by Tarun B Patel from the Mechanical Department at Dr Ghandhy College.

1. Development of Surfaces
Tarun B Patel

2. No of Side X Size of Side
4 X 30 = 120
Development of Prism [Parallel-line development]
Tarun B Patel Mechanical Dept Dr Ghandhy college

3. No of Side X Size of Side
4 X 30 = 120
Development of Prism [Parallel-line development]
10
10
a(a1) b(b1)
c(c1)
d(d1)
a1’(d’1)
a’(d’)
b1’(c’1)
b’(c’)
A1 B1 C1 D1 A1
A B C D A
P’(q’)
l’(m’)
P
L M
Q P
Tarun B Patel Mechanical Dept Dr Ghandhy college

4. Development of Cylinder [Parallel-line development]
40
60
πD= 125.66
a(p)
b(q) d(s)
e(t)
f(u)
g(v)
h(w)
P’
a’ e’
t’
q’ r’ s’
(u’)
(v’)
(w’)
b’ c’ d’
(h’) (g’) (f’)
P Q R S T U W
V P
A B C D E F H
G A
Tarun B Patel Mechanical Dept Dr Ghandhy college

5. Development of Cylinder [Parallel-line development]
40
60
πD= 125.66
a(p)
b(q) d(s)
e(t)
f(u)
g(v)
h(w)
P’
a’ e’
t’
q’ r’ s’
(u’)
(v’)
(w’)
b’ c’ d’
(h’) (g’) (f’)
P Q R S T U W
V P
A B C D E F H
G A
1’
2’(8’)
3’(7’)
4’(6’)
5’
1
2
3
4
5
6
7
8
1
Tarun B Patel Mechanical Dept Dr Ghandhy college

6. Development of Pyramid [Radial-line development]
40
60
1
2
3
4
o
O’
2’(1’) 3’(4’)
True Length
1
2
3
4
1
O
Tarun B Patel Mechanical Dept Dr Ghandhy college

7. Development of Pyramid [Radial-line development]
40
60
1
2 3
4
o
O’
2’(1’) 3’(4’)
True Length
1
2
3
4
1
O
a’(b’) c’(d’)
a
b d
c
B A
C
D
B
Tarun B Patel Mechanical Dept Dr Ghandhy college

8. 1
4
3
2
1
Development of Pyramid [Radial-line development]
60
1
2
3
4
5
O
1’ 3’
4’
5’
O’
a’
b’
c’ d’
p’ q’ r’ s’ t’
a”
b”
c”
d”
5
P Q S
T
R
P
O
A
D
B
2’
C
25
True Length
Tarun B Patel Mechanical Dept Dr Ghandhy college

9. 1
3
4
5
1
Development of Pyramid [Radial-line development]
60
1’
O’
2
A B C
D
E
A
O
25
1
2
3
4
5
O
2’ 3’
(4’)
(5’)
a’ b’
c’
(d’)
(e’)
p’
q’
r’
(s’)
(t’)
Don’t find TL
R
S
q’’
(t’’)
Q
P T
Tarun B Patel Mechanical Dept Dr Ghandhy college

10. Development of Cone [Radial-line development]
60
1
O’
1’
6
1
O
2
3
5
4
7
8
2’ 3’ 4’ 5’
(6’)
(7’)
(8’)
Ø40
Θ=360 X 20/? = 114.11
1
2
3 4
5
6
7
8
Tarun B Patel Mechanical Dept Dr Ghandhy college