Page 36 - CITS - ED - Mechanical

ENGINEERING DRAWING - CITS

Fig 3

Fig 4 Fig 5

In some cases three views are compulsary. For example Fig 6 shows the three views of a bracket. In this case if
the top view is omitted, providing the front and side view alone, it is difficult to understand the two views or visualise
the object, because the characteristic `Z' shape of the top view is omitted and also the corners are squares and
not filleted. Hence in this example three views are necessary.
One view drawings: Often single view with a note or lettered symbols is so sufficient to explain the features of the
object. Fig 7A one view of the thin component, adding a note indicating the thickness is sufficient to explain the
features. At Fig 7B one view of a stepped turning piece shown with a threaded portion at the end with additional
notes, is sufficient to explain the features of the object.

Fig 6 Fig 7

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CITS :Engineering Drawing (Mechanical) - Exercise 3