Module 3 :Projections of Solids , Sectional Views And Intersections of Solids

Lecture 30 : Examples In Projection of Solids

 

Problem-7
Draw the top and the front views of a right circular cylinder of base 45 mm diameter and 60 mm long when it lies on HP such that its axis is  inclined  at   350  to HP and the axis appears to be perpendicular to VP in the top view.


Solution:
The solution to the problem is illustrated in figure-7 . Three steps are involved as shown in the figure.  In Step-1, the cylinder is drawn in the simple position (resting on the base on HP). The circle in the  top view is dived in to 12 equal parts and then projected in to the front view. In step-2, The Front view is rotated about g1 such that the axis is inclined at 35° to HP (or XYline). The top view is projected from this front view with thehelp of Top view in step-1. . In step 3, the top view is rotated such that axis is perpendicular to XY line. The front view is then projected from the top view.

 

Figure 7. The projections of the cylinder  as per  problem-7.