___ Projection o/Solids 6.23
- Obtain the top view by projection.
Case (ii) - Redraw the front view such that front view of the edge OA is perpendicular to xy (the line
olal) - Obtain the top view by projection.
6.8 Cone and cylinder
Problem : Draw the projection of a cone of base 40mm diameter, axis 60mm long when it is
resting with its base on H.p.
Construction (Fig. 6.33)
X--~-t----+- -l y
Fig. 6.33- Draw the reference line xy and locate 0 at a convemient distance below it.
- With centre 0 and radius 20mm draw a circle forming the top view.
- Obtain the front view by projection, keeping the height equal to 60mm and the base coinciding
withxy.
Problem: Draw the projections of a cone with diameter of the base as 40mm and axis 70mm
long with its apex on H.P and 35mm from v.p. The axis is perpendicular to H.P.
CC)Qstruction (Fig.6.34)- Draw the reference line xy and locate 0 at 35mm below it.
- With 0 as centre draw a circle of diameter 40mm which is the top view of the cone.
- Obtain the front view by projection, keeping the height equal to 70mm and the apex 01 on xy.