The machinist should have a drawing from which he is able to obtain accurate information, which enables him to take the actual rough casting and through slotting, planing, drilling, milling, chipping or turning, they produce the finished fixture as conceptualized by the drafter.
Contractors, architects, and engineersof all kinds must have accurate drawings for them to produce satisfactory results within their particular fields. To accomplish this feat, it is necessary that working drawings are be created according to particular principles and methods thoroughly understood by the one who makes the drawing and the one who uses it.
The structural engineering drawings serve as the common language for just about all mechanics and machinists. Through implementing it, the ideas from the designer, architect or engineer are transmitted or conveyed to the worker. There is hardly any area of work in industry in which the knowledge of drawings are not utilized universally. It is certainly true that there is no industry that doesnot require knowledge of drawing and the employment of drafter. Examplesof machines and fittings, with the aid of mechanical drawings and working sketches, is the necessary first step in building these machines and fixtures.
If we then consider mechanical drawing like a language, we understand then that they are to be used to share thoughts and ideas. Orthographic projection, the industry division of descriptive geometry, is its grammar and also the foundation upon which is built a myriad of correct mechanical drawings. It is actually the art of symbolizing any object so accurately that the skilled worker, upon checking the drawing, should have the ability to make the object precisely to the materials and dimensions provided, without any further spoken or written instructions by the designer.
The objects illustrated could be machines, implements, buildings, items, or ornaments. They may be constructed of many numerous materials. The drawings might be linear, shaded and colored, or plain. Because of the nature of the information being conveyed, they must be precisely scaled, but various geometrical methods might be employed.