What are the scale of the drawings?

Before you start to consider the standard scale of the drawings, you need to understand what exactly this concept is. So, a similar value is in the general case a relation of two linear dimensions. However, the interpretation of this definition is more widely known, as the ratio of the size of the drawing to the dimensions of the real object. Therefore, it can be quite rightly assumed that the above-described term has found wide application in cartography, geodesy and, of course, design.

Why is it necessary?

As already mentioned earlier, real objects can have both significant enough sizes, and very small. However, a person can not sketch everything in full size, because a sheet of colossal dimensions would be required on a sheet of paper for the layout of the building , and, in turn, a high degree of detail would be required to recreate small elements (as, for example, in the clockwork). As a result, the person has adapted to represent the necessary objects that have been reduced (or enlarged) for a certain number of times for ease of perception and the so-called "readability" of the figure. Currently, there are certain standards, for example, GOST "Scale of drawings", which describe all the requirements for the appearance and filling of the relevant images.

Large objects

As mentioned earlier, for the display of buildings and other large objects it is necessary to use the scale of the drawings of the so-called reduction. They are standardized, which means that an arbitrary sample will not work. The most common values are: 1: 2; 2.5; 4; 5; 10; 15; 20; 25; 40; 50; 75; 100; 200; 400; 500; 800; 1000. Consider what it means to write a similar kind. So, the real (in other words, natural) envelope of an object is expressed in the form of an inscription 1: 1. Therefore, as the scale of the drawings is reduced, the initial size (1) is first described, and then the number that shows how many times the drawing is reduced in relation to To the actual dimensions. In construction, in addition to the above standard records, pointers 1: 2000 can also be used; 5000; 10,000; 20,000; 25,000; 50 000.

Small parts

In the event that you need to depict small objects in the drawing, the scale of the enlargement drawings is traditionally used. In this case, there is not such a wide variety of values, but the standard specifies the most commonly used values. So, the model series looks like this: 2; 2.5; 4; 5; 10; 20; 40; 50; 100: 1. The decoding of such inscriptions reads like this: first the number indicating how many times the image in the drawing is increased in comparison with the original object. The second number after the colon displays the real (it is a natural or real) size of the object in question (it is assumed to be 1).

Conclusion

In this paper, the scale of the drawings and their standard series were considered. It should also be noted that on the plans, projects and images themselves, the magnitude of the scale is indicated in a specially designated column in a frame, otherwise known as a stamp.