Technical drawing is one the basic skills taught in most high schools. It is a general term that could describe the illustrations that depict buildings, machines and other three dimensional figures that would need representation from multiple perspectives. It is an acquired skill, and a lot of professionals take years of practice to perfect the art and the science of getting it just right. Sometimes, it’s a lot better if you can do it well yourself. If anything, it sure saves money from getting someone to do drafting services for you.
Learning how to make technical drawings can be quite challenging, but the task can become a lot easier if you have the right equipment for the job. It all starts with drawing boards or drafting tables. These are tables that can accommodate large-format paper. You’re nothing without a solid foundation, so invest in a drafting table that could be of use in many projects of varying scales and sizes. A nice pencil with the right type of graphite would also help. Different numbers and brands of pencils would have different shades, so make sure that you’re getting the right one. A straight rule with a good, accurate measuring system would also help. Other tools that would be needed include a protractor and a compass for circular figures that may need to be drawn on the sheet.
The heart of engineering drawing lies in two concepts: scale and perspective. When you’re making a house for an architectural drawing, it would be very impractical to draw an illustration that would be the same size as the actual building will be—you would probably finish through all the graphite in your pencil before you end this gargantuan sketching task. The scale allows you to convert a real-life measurement to a size that would be more acceptable on the drawing sheet or even in a three-dimensional scale model. The scale comes in a format of a ratio, and this proportion has to be observed for all the components of the design, if the design is to be taken to its full potential.
Perspective is created to make sure that the viewer of the technical drawing can understand the figure being depicted. If you would look at a cube from one side alone, you will not be able to guess if it was just a square background, a block, a rectangular prism or the back of a house. If there were a view from the top of the figure or a drawing that would allow you to see the figure at an angle, it would be a lot easier for you to see the tiny details along with the drawing symbols. The ability to see these things can definitely make the construction and modification of the entire project design a lot easier.
Technical drawing is about making a three-dimensional representation of an object on a two-dimensional piece of paper. The trick lies in drawing objects with the proper proportions and perspectives.