Technical views. Orthographic projection. Dihedral system.

A drawing is a graphic representation of an object. The intention of these technical representations is to be able reproduce/build the object exactly identical of the drawing; this is shown in plans, instructions, blueprints, the technical drawing is required to elaborate this types of drawings with the as precisely as possible.

The technical views are is a way of representing a three-dimensional object in two dimensions. It uses different two-dimensional views of the object instead of a single three-dimensional view. This allows you to communicate exactly what you want your structure to look like and eliminates any miscommunication between you and the person creating your design.

Primary Views.

Typically, an orthographic projection drawing consists the position of the viewer is perpendicular 90º to the projection plane. There are 6 but to define an object it is only 3 needed: a front view, a top view, and a side view. Occasionally, more views are used for clarity. 

• Front view is chosen as the most representative part of the object. The other elevations are drawn around it. 

• Plan or top view: Is the view of the figure overhead.

• Left or right elevation: view from the left or right-hand side of the figure.