click below
click below
Normal Size Small Size show me how
Engineering Drawings
Vocabulary - Engineering Drawings
Term | Definition |
---|---|
Diameter | a straight line that passes through the center of a circle and has endpoints on the circle. |
Radius | a straight line segment from the center of a circle to its perimeter. |
Parallel Lines | lines that are the same distance apart and will never meet. |
Perpendicular Lines | lines that are right angles (90 degrees) to each other. |
Thumbnail Sketch | a preliminary idea for a design with very little detail. |
Isometric Drawing | a way of showing a 3D object on a 2D piece of paper where all three drawing axes are 120 degrees from each other. |
Perspective Drawing | a way of showing a 3D object on a piece of paper where vanishing points are used to show depth. |
Orthographic Drawing | a way of showing a 3D object on a piece of paper using only three views (top, front, and right). |
Hidden Lines | a line that represents an edge that is not visible in that view; drawn with equal sized dashes |
Center Lines | a line used to show the center of a circular object; drawn with a long dash and then a short dash. |
Object Lines | a heavy solid line used on a drawing to represent the object. |
Construction Lines | thin lines that serve as guides when sketching or drawing; barely visible. |