Orthographic drawing is the method of producing the drawing of an object so that it can be fabricated accurately. It shows every aspect of the shape and size of each part of the object so as to accurately guide the person. Who will fabricate or construct the object. Such object can be simple bolt or a building complex. In orthographic drawing, accurate portrayal of articles consists of the ude of standardized lines views, section lining and drawing to scale, using the metric system of measurement. This unit of measurement is becoming standard worldwide. It is usually in metres (m) , centimeters (cm) , and millimetres (mm). Dimensions on drawings are usually in millimetres unless otherwise stated.
