Textbook of Engineering Drawing, Second Edition

12.8 Textbook of Enginnering Drawing------------------

Problem 5 : A cylinder of base diameter 40 mm and height 60 mm rests on its base on HP. It is cut
by a plane perpendicular to VP and inclined at 30° to HP and meets the axis at a distance 30 mm
from base. Draw the front view, sectional top view, and the true shape of section.

w' 'I' U

x p q' r's't' y

3(

Fig. 12.9

Solution : Draw the projections of the cy~inder. The top view is drawn and the front view is

projected. Consider generators bY dividing the circle into equal number of parts and project them to

the front view.

To draw the cutting plane, front view and sectional top view

1. Draw the VT of the cutting plane inclined at 30° to XYline and passing through a point on the
   axis at a distance 30 mm from base.


2. The new point 1', 2' etc. are marked on the generators a' p', h' q' etc.


3. Project the new points to the top view to get 1, 2, etc. which are coinciding with p, q, etc. on
   the base circle.


4. Join these points and draw the hatching lines to show the sectional top view.