2. Drafting Tools Drawing Board T-Square Triangles Compass Protractor Scale Erasing Shield Dusting Brush

3. Mechanical Drafting Mechanical Drawings are made with the aid of drafting tools or instruments. Drawings are often the only way to explain or show ideas. Drafting is known as a universal language. Drafting uses symbols to accurately describe the size, shape, material, finish and fabrication of a product.

4. Engineering Drawing Rules Always use a Pencil. Make all lettering the same size. Use Engineering or Drafting Paper. Use light guide lines to keep letters uniform in height

5. Single Stroke Gothic Style Lettering The accepted lettering standard of the American National Standards Institute (ANSI).

6. The Six Basic Views

7. Orthographic Projection Orthographic drawings represent three dimensional objects in three separate views arranged in a standard manner. The objects are drawn on a flat surface having only two dimensions.

8. Selecting a Front View and View Projection Engineering Graphics WIDTH HEIGHT DEPTH

9. Multi-View Sketching Represents a 3-D object with a series of 2-D views in contrast to “pictorials” which show all three dimensions in a single view One of many drafting techniques that is a quick way to show an idea that would be difficult to describe with words alone. Multiview Drawing Pictorial

11. Pictorial Drawing A drawing that shows a likeness (shape) of an object as viewed by the eye. Pictorial

12. Sketching Sketching is a rapid, freehand method of drawing without the use of drawing instruments. Sketching is also a thinking process and a method of communication. A good sketch includes the shape of an object, dimensions, and instructions on how the object can be made.