Posted in Engineering Drawing

Orthographic Projections

Introduction In the preceding chapters 1 to 4 plane geometry, where the constructions of the geometrical figures having only two dimensions are discussed, solid geometry is delt with in the following chapters. Engineering drawing, particularly solid geometry is the graphic language used in the industry to record the ideas and information necessary in the form of blue prints to make machines, buildings, structures etc., by engineers and technicians who design, develop, manufacture and market the products. Projection As per the optical physics, an object is seen when the light rays called visual rays coming from the object strike the observer’s…