Page 80 - CITS - ED - Mechanical

ENGINEERING DRAWING - CITS

Procedure for drawing oblique views: The procedure for creating oblique drawing is very much similar to that
for drawing isometric views. To make isometric view we start from drawing three isometric axes at the desired
orientation. In oblique drawing also we start by drawing three axes at the desired orientation. But here two of the
axes are perpendicular to each other while the third axis (receding axis). Make 45° or 30° to the horizontal. The
orientation of the axes may be any one of the four possibilities given in the figure 24.

Fig 23 Fig 24

Object positioning in oblique drawing: Remember to position the object in such a way as to make best use
of the advantage offered by oblique projection. The face that has the maximum curved details should be placed
parallel to the plane of projection. See example in Fig 25.
Another point to note is as far as possible, place the longest dimension parallel to the plane of projection.
(Fig 26a & b)
Few examples of oblique drawings are shown in Fig 27.
Draw the isometric figures (Ex.10.1 to 10.29) in the work book Ex.No.10. Follow the procedure given wherever
necessary.

Fig 25 Fig 26

Fig 27

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CITS : Engineering Drawing (Mechanical) - Exercise 5