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Improved  spacing  for  three-view  projection  of  object  shown  in  figure  5-18
Two-view  multi-view  projections

Engineering Aid 3 - Beginning Structural engineering guide book
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Figure  5-17.-Multi-view analysis of a third-angle orthographic projection. Figure 5-18.-Procedure for numbering hidden and visible corner  points. of  which  view  you  are  considering.  This  means that,  in  a  third-angle  projection,  each  view  of  a surface of an object is a view of that surface as it  would  appear  to  an  observer  looking  directly at it. Figure  5-17  shows  a  six-view  multi-view third-angle  projection  of  the  block  shown  in  a single-view  projection  in  the  upper  left  corner of  the  figure. You   should   not   have   any trouble  analyzing  the  front  view;  you  know that  the  top  is  up,  the  bottom  is  down,  the left  side  is  to  the  left,  and  the  right  side  is to the right. In the top and bottom views, it’s easy to see that the right-hand vertical line represents the right side and the left-hand vertical line, the left side. But you might have to think a minute to realize that  the  upper  horizontal  line  in  the  top  view represents the back face of the block, while the upper   horizontal   line   in   the   bottom   view represents   the   front   face   of   the   block.   Note, also, that there is a line that appears as a visible line in the top view and as a hidden line in the bottom  view. In the right side and left side views, you can readily  see  that  the  upper  horizontal  line represents  the  top  of  the  block  and  the  lower horizontal  line,  the  bottom.  But  you  may  have to  think  a  minute  to  realize  that  the  left-hand vertical line in the right side view represents the front  face  of  the  block,  while  the  left-hand 5-10







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