views, the three occurrences will be related as shown
line "ag" and transferring points to the right side
by point 1 in part [2] of figure 1-35. On complex
view, to line "ae" On the isometric view, this
drawings it is often helpful to draw this 4-degree line
corresponds to the line from "a" to "n" which can
to be sure you are looking at the same point on all
now be drawn on the isometric view. Line "ab" on
three views when interpreting the drawing.
the front view must correspond to line "ac" on the top
view, and to line "ad" on the right side view. This
b. Figure 1-36 is a three-view drawing of an
translates as a line from "a" to "q" on the isometric
object, along with an isometric outline of a box with
view. At this stage, it is evident that line "el" (right
the same overall dimensions of the object. Trace off
side view) is the same as line "hj" (front view) and a
the isometric outline and points on a separate piece of
line has been drawn from "p" to "n" on the isometric
paper and sketch in the details as you read the
view. Similarly, line "fc" (top) is the same as line
paragraph. This will help you to learn to visualize
"hb" (front) and a line has been drawn from "m" to
the object as you interpret a construction print.
"q" on the isometric view. Line "cg" (top) may
Looking at the right hand side of the front view, and
correspond to either "hb" or "ja" (front) but not to
the corresponding parts of the top and side views,
"ha" which has already been established. If "cg"
interpretation of the part of the isometric diagram that
corresponds to "ja" it would also have to correspond
has been completed should be apparent. Note the
to "la" in the right side view because point "a" has
point marked "a" on the top view. From the
been established and "cg" does not project to "la" in
projection indicated it must be the same as the point
the right side view. Therefore, "cg" corresponds to
marked "a" on the right side view. Projecting these
"hb" in the front view and to "ed" in the right side
two points to the front view shows that the point
view. Line "cg" must correspond to a line from "n"
marked "a" on all three views is the same point and is
to "q" on the isometric view. All that remains is to
located at "a" on the isometric diagram. Next look at
complete the isometric view with the only possible
the line "ah" on the front view. Point "h" on the front
lines which do not contradict one or more of the three
view may correspond to point "g" or point "f" on the
views; lines from "p" to "a" from "a" to "r" and from
top view, but there is no line from "a" to "f" on the
"r" to "q" produce an isometric which should look
top view. Line "ah" therefore, must correspond to
like figure 1-37 at the end of the section.
Figure 1-36. Exercise in interpretation.
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