Engineering drawings, also known as technical drawings, are a fundamental language in engineering and manufacturing. They are precise, detailed visual representations of components, assemblies, or systems that communicate the design intent to those who will manufacture or construct the design.
Engineering drawings use different types of views to accurately represent a 3D object on a 2D surface. These views are crucial for conveying design intent and manufacturing requirements.
This is the most common type of view in technical drawings.
It represents a 3D object using 2D views projected onto planes perpendicular to each other.
A pictorial (3D) view of an object, showing the object from a corner angle such that the front, side, and top are all visible at once.
All three axes (width, height, depth) are foreshortened equally, often at 30° angles from the horizontal.
Useful for providing a clear overall picture of the object's shape.
Engineering drawing's history spans millennia, starting with simple sketches for large structures in ancient civilizations like Egypt and Mesopotamia. The Industrial Revolution saw the rise of more precise drawings and the introduction of scale, while the development of descriptive geometry by Gaspar Monge provided a foundation for modern technical drawing. The 20th century brought the revolution of Computer-Aided Design (CAD), transforming the process and allowing for digital 2D and 3D modeling.
Here's a more detailed look:
Draw a chair. Any chair that you see around you.
Look at it from the front, top, and side. Also look at it from an angle so you can draw the isometric view.
