Missing and Isometric Views Ppt v1 for Vinod

8/3/2019 Missing and Isometric Views Ppt v1 for Vinod

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MISSING AND ISOMETRIC

VIEWS


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Discussion on Orthographic and

isometric projection.


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Success is lies not in the Result",

but In the " Effort, Being the

Best is NOT at all important ,

Doing the Best is all that

matters


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Taking wrong decision is better

than to remain confused.


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Principal of projection.If straight lines are drawn from various points

on the counter of an object to meet a plane,

the object is said to be projected on that plane.The figure formed by joining ,in correct

sequence ,the points at which these lines

meet the plane ,is called the projection of the

object .The lines from the object to the plane

are called projectors.


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METHODS OF PROJECTIONIn engg. drawing following four

methods

of projections are commonly used they are1)Orthographic projection.

2)Isometric projections.

3)Obique projection.

4)Prespective projection.


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In the above methods 2,3,4 represents the objects

by a pictorial view as eyes see it .In these methods of

projection a three dimensional object is represented

on a projection plane by one view only. While in the

orthographic projection an object is represented by

two or three views on the mutual perpendicular

projection planes. Each projection view representstwo dimensions of object at least two or three views

are required.


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Draw the first angle

projection and third angleprojection symbol?


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Why first angle and third angle

method is used and why second

and fourth angle method is not

used?


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Assumptions.1)Vertical plane is assumed fix.

2)Horizantal plane is rotated in 90 degree.

3)Horizontal plane is rotated in clockwisedirection only.

4)Observer is always at the right side of vertical

plane.


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Why third angle method is mostly used?


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First angle projection


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Third angle method.


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What is mean by

isometric projection?


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Isometric projection is a type of

pictorial projection in which the

three dimensions of a solid are not

only shown in one view, but their

actual sizes can be measureddirectly from it.


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Isometric graph


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Answer

1.


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Solution-1


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2.


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Solution-2


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3.


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Solution-3


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4.


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Solution-4


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5.


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SOLUTION-5


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6.


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SOLUTION-6


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7.


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SOLUTION-7


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8.


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SOLUTION-8


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9.


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SOLUTION-9


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10.


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SOLUTION-10.


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11.


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SOLUTION-11


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12.Draw isometric view?.


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SOLUTION-12


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13.


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SOLUTION-13


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SOLUTION-13


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14.


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SOLUTION-14


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Missing and Isometric Views Ppt v1 for Vinod