ABSTRACT

Engineering drawings are always drawn in orthographic projection. For the presentation of detailed drawings, this system has been found to be far superior to all others. The system has, however, the disadvantage of being very difficult to understand by people not trained in its usage. It is always essential that an engineer be able to communicate his ideas to anybody, particularly people who are not engineers, and it is therefore an advantage to be able to draw using a system of projection that is more easily understood. There are many systems of projection and this book deals with three: isometric, oblique and orthographic projections. Isometric and oblique projections present the more pictorial view of an object.