Exercises: Intro D8 | D2 | D3 | D27 | D29 | F2 | M02 | Ortho Quiz |

Orthographic Drawings represent a "Three Dimensional" object on a two dimensional piece of paper or computer screen.
They are a useful tool when planning - especially when accompanied by the dimensions (lengths) of specific edges or surfaces.

Orthographic drawings (literally translated "at right angles") are one form of technical drawing. There are many other types each designed to communicate different aspects of a design idea:

  • Isometric drawings are drawn at a 30 degree angle from a horizontal line and present a more 3D view of an object.
  • Perspective drawings are also 3D and use linear perspective to provide a very realistic image of an idea
  • Exploded drawings present the component parts of an object "blown apart" from each other so as to see how all the parts go together

Check out this link which describes of the "Glass box analogy" and some other important rules for drafting and dimensioning.