A square prism of side of base 30 mm, axis height 50 mm has its sides of base an equally incline with VP. A section plane perpendicular to the VP and inclined to the HP at 45 0  cuts the prism such that it passes through the point on the axis at a distance of 12 mm below the top base. Assuming the major part to be retained. Draw the projection of a prism showing the FV, sectional TV and true shape of section. Add development of lateral surface of the retained prism.

Given Data:

Side of prism = 30 mm

Axis length = 50 mm

Resting on HP with sides of equally inclined to VP.

A.I.P. inclined to HP at 45° and cut the prism axis at 12 mm below the top base.

Procedure:

Stage 1: FV and Sectional TV

1. Draw XY …