Technical drawing has existed since ancient times. Complex technical drawings were made in renaissance times, such … See more

Engineering drawings specify the requirements of a component or assembly which can be complicated. Standards provide rules for their specification and interpretation. Standardization also aids internation… See more

For centuries, until the 1970s, all engineering drawing was done manually by using pencil and pen on paper or other substrate (e.g., vellum, mylar). Since the advent of computer-aided design (CAD), engineerin… See more

Almost all engineering drawings (except perhaps reference-only views or initial sketches) communicate not only geometry (shape and location) but also dimensions and tolerances for those characteristics. Several sys… See more

Drawings convey the following critical information:
• Geometry – the shape of the object; represented as views; how the object will look when it is viewed from various angles, such as fro… See more

Every engineering drawing must have a title block.
The title block (T/B, TB) is an area of the drawing that conveys header-type information about the drawing, such as:
• Drawing … See more

As in many technical fields, a wide array of abbreviations and symbols have been developed in engineering drawing during the 20th and 21st centuries. For example, cold rolled steel is often abbreviated as CRS, and … See more