Pantograph

A pantograph is a drafting instrument used for copying and scaling drawings. It consists of a series of hinged arms or bars connected by joints, which allow for the movement and adjustment of the instrument. The pantograph is typically used in drafting, surveying, and mapping to create accurate and proportional copies of existing drawings or to scale up or down existing designs.

The primary purpose of a pantograph is to maintain the same proportions and dimensions as the original drawing while enlarging or reducing its size. This is achieved by tracing the original drawing with one end of the pantograph and simultaneously copying the image onto a separate sheet of paper with the other end. By adjusting the position of the arms and bars, the user can control the scale and size of the copied image.

Pantographs are commonly used in architectural and engineering fields to create scaled drawings, such as floor plans, elevations, and technical diagrams. They are also used in artistic applications, such as creating detailed illustrations or reproducing artwork.

In summary, a pantograph is a versatile drafting instrument used for copying and scaling drawings in the fields of drafting, surveying, and mapping. It allows for accurate reproduction of existing designs while maintaining proportional dimensions.