Textbook of Engineering Drawing, Second Edition

___ Projection of Solids 6.7

1. Draw the top view keeping one edge perpendicular to xy and one corner at 10mm
   fromxy.


2. Obtain the front view by projection, keeping the height equal to 50mm.

Problem: A pentagonal prism with side of base 30mm and axis 60mm long is resting

on its base on HP such that one of its rectangular faces is parallel to VP and 15mm

away from it. Draw the projections of the prism.

Constructon (Fig.6.10)

a' a' b' d' c'

X -t--+-F--+--+-t--Y

In ...... l' 2' 4' 3'

d

a

Fig. 6.10

1. Draw the top view keeping one edge of the base parallel to xy and 15mm away from it.


2. Obtain the front view by projection keeping the height equal to 60mm.

Problem: A hexagonal prism with side of base 30mm and axis 60mm long lies with

one of its longer edges on HP such that its axis is perpendicular to V.P.Draw the

projections of the prism when the base nearer to v.P is at a distance of 20mm from it.

Construction (Fig.6.11)

1. Draw the front view keeping one comer on xy and one side making an angle on 0° with
   xy.


2. Obtain the top view by projection, keeping its length equal to 60mm and one of its bases
   20mm from xy.


3. Axis parallel to both the principal planes
   when the axis of solid is parallel to both the planes, neither the front view nor the top view
   reveal the true shape of the base. In such case, the side view must be drawn fIrst which
   shows the true shape of the~~, The front and top view are then projected from the side
   view.