Technical illustration
Technical illustrators, contrary to popular opinion are not simply technical drawers, instead you could call them technical visual experts.
They are responsible for producing an endless variety of 3D graphic illustrations for technical documentation, working manuals, spare parts catalogues, assembly manuals, operating and maintenance guides. Commercial technical illustrations are found in advertising, but also in schooling programs and technical or scientific journals.
Typical examples of technical illustration are exploded drawings, cutaway sections and ghosted images in isometric or 3 point perspective, either as a black and white line drawing or as a full colour rendering.
In order to achieve this the technical illustrator calls upon a wide field of specialized techniques that include drawing, painting, airbrush, marker technique and photography as well as an extensive knowledge of digital mediums.
Although it may seem technically sterile and exact, this form of illustration still enables illustrators a high degree of artistic license. Give ten illustrators the same contract and they will all produce ten different illustrations.
There are several criteria that make a good illustration;
• The technical illustration should be technically correct, however, certain aspects of an illustration are enhanced, exploded, looped out, cut away/sectioned or ghosted in order to attain the desired clarity.
• The illustration should be aesthetically pleasing. The choice of viewing angle, light source and the overall rendering should all be used to achieve the desired effect.
• The overall rendering should fit the theme of the illustration. The use of colour, surface textures and atmospheric line weights should relate to the scale of the illustration.
Another important aspect of technical illustration is the relationship between illustrator and client. Sometimes the decision to use an illustration falls at a late stage in the development of a product. Therefore punctuality plays a very important role. The illustrator has to know that the work he is doing is only a fraction of the overall concept.