Circular plane Projection
24
Draw the Projection of a circle of 70mm diameter on the HP. On a Point A of the circumference. The plane is inclined to the HP such that the top view is an ellipse of minor axis 40mm.The top view of the diameter ,through the point A is making an angle of 45 0 with the VP. Determine the inclination of plane with HP Anna University Question on Engineering Graphics And Engineering Drawing as per JNTU Circular plane Projection For First year Engineering students of all branch Step by Step Process Not available in any Text book Self learning is possible Learn from your mobile Look into www.facebook.com/ Rajendiran1950 Step by Step Process N ot available in any Text book Self learning is possible Learn from your m obile Look into www.facebook.com/ R ajendiran1950
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Transcript of Circular plane Projection
Draw the Projection of a circle of 70mm diameter on the HP. On a Point A of the circumference. The plane is inclined to the HP such that the top view is an ellipse of minor axis 40mm.The top view of the diameter ,through the point A is making an angle of 450 with the VP. Determine the inclination of plane with HP
Anna University Question on Engineering Graphics And Engineering Drawing as per JNTU Circular plane Projection For First year Engineering students of all branch
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0 Step by Step Process
Not available in any Text book
Self learning is possible
Learn from your mobile
Look into
www.facebook.com/Rajendiran1950
Draw XY line as shown
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Prof.S.Rajendiran,Ashoka Institution
1.Draw a circle as shown
70 Ø
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Prof.S.Rajendiran,Ashoka Institution
Since top view is an ellipse of minor axis 40mm.And hence the surface makes an angle with HPTherefore we need to Draw a circle in HP so that surface parallel to HP and lying on HP
2.Draw projector as shown
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Prof.S.Rajendiran,Ashoka Institution
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Prof.S.Rajendiran,Ashoka Institution
3.Draw front view as shown
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Prof.S.Rajendiran,Ashoka Institution
4.Divide the circle as shown
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Prof.S.Rajendiran,Ashoka Institution
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5.Mark the point as shown
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Prof.S.Rajendiran,Ashoka Institution
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6.Draw Projectors as shown
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Prof.S.Rajendiran,Ashoka Institution
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7.Mark the point as shown
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Prof.S.Rajendiran,Ashoka Institution
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
8.Name the points as shown
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Prof.S.Rajendiran,Ashoka Institution
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
40
9.Draw a line 40mm equal to minor axis on XY line as shown
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Prof.S.Rajendiran,Ashoka Institution
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
10.Draw a vertical line as shown
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Prof.S.Rajendiran,Ashoka Institution
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
11.Transfer the front view as shown
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Prof.S.Rajendiran,Ashoka Institution
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
12.Draw vertical projectors as shown
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Prof.S.Rajendiran,Ashoka Institution
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1
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89
10
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
13.Draw horizontal projector as shown
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Prof.S.Rajendiran,Ashoka Institution
a
1
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89
10
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
2 1’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
111
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101
21
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61a1
14.Name the inter sectionpoints as shown
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Prof.S.Rajendiran,Ashoka Institution
a
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23
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89
10
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
111
11
101
21
91
31
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61a1
15.Join the points as shown to get ellipse
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Prof.S.Rajendiran,Ashoka Institution
a
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
111
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101
21
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450
16.Draw a line 450 as shown
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Prof.S.Rajendiran,Ashoka Institution
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
112
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102
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a2
111
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17.Transfer top view as shown
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Prof.S.Rajendiran,Ashoka Institution
a
1
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4
5
6
7
89
10
11
11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
112
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102
22
92
32
82
42
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72
62
a2
111
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101
21
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31
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61a1
18.Draw horizontal projectors as shown
X Y
Prof.S.Rajendiran,Ashoka Institution
a
1
23
4
5
6
7
89
10
11
11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
112
12
102
22
92
32
82
42
52
72
62
a2
111
11
101
21
91
31
81
41
51
71
61a1
19.Draw vertical projectors as shown
X Y
Prof.S.Rajendiran,Ashoka Institution
a
1
23
4
5
6
7
89
10
11
11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
112
12
102
22
92
32
82
42
52
72
62
a2
111
11
101
21
91
31
81
41
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61a1
a2’
62’
32’
42’82’
22’102’92’
12’112’
52’72’
20.Mark and Name Intersection points as shown
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Prof.S.Rajendiran,Ashoka Institution
a
1
23
4
5
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89
10
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11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
112
12
102
22
92
32
82
42
52
72
62
a2
111
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101
21
91
31
81
41
51
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61a1
a2’
62’
32’
42’82’
22’102’
92’
12’112’
52’72’
22.Join the points with smooth curve as shown
X Y
Prof.S.Rajendiran,Ashoka Institution
a
1
23
4
5
6
7
89
10
11
11’1’
10’2’
9’3’
8’4’
5’7’
6’a’
11 1’
1 1’
10 1’
21 ’
9 1’3 1
’
8 1’4 1
’5 1
’7 1
’61 ’
a 1’
112
12
102
22
92
32
82
42
52
72
62
a2
111
11
101
21
91
31
81
41
51
71
61a1
a2’
62’
32’
42’82’
22’102’
92’
12’112’
52’72’
450
4070
TOP VIEW
FRONT VIEW
ALL DIMENSIONS ARE IN mmSCALE 1:1
VP
HP
