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gopalsamy
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Join Date: Aug 2009
Posts: 1

mechanical engineering

08/18/2009 1:32 AM

we often use first and third angle projection in engineering drawings and we donot use second and fourth angle projections .why?
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DVader1000
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Engineering Fields - Environmental Engineering - New Member APIX Pilot Plant Design Project - Member - New Member

Join Date: May 2007
Location: Anywhere Emperor Palpatine assigns me
Posts: 2774
Good Answers: 101
#1

Re: mechanical engineering

08/18/2009 3:09 AM

Because then you'll get plenty of hidden details. Try it yourself if you don't believe it.

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imgkg
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Join Date: Aug 2009
Posts: 1
#2

Re: mechanical engineering

08/18/2009 6:56 AM

if you use second and fourth angle projections, views will be over lapping each other.
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Anonymous Poster
#3

Re: mechanical engineering

08/18/2009 10:19 AM

First try to get the meaning why first angle is called first and third angle third.

Why not fifth, sixth... ?
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