A pantograph (from Greek παντ- 'all, every' and γραφ- 'to write', from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical movements in a second pen.

2013年4月23日 · A pantograph is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical movements in a second pen. If a line drawing is traced by the first point, an identical, enlarged, or miniaturized copy will be drawn by a pen fixed to the other.

Pantograph, instrument for duplicating a motion or copying a geometric shape to a reduced or enlarged scale. It consists of an assemblage of rigid bars adjustably joined by pin joints; as the point of one bar is moved over the outline to be duplicated, …

2024年7月9日 · A pantograph is a four-bar linkage used to produce paths exactly similar to the ones traced out by a point on the linkage. The paths so produced are, usually, on an enlarged or reduced scale and may be straight or curved ones.

A pantograph is a mechanical linkage that is coupled in a parallelogram-based fashion so that the movement of one pen while tracing an image causes identical motions in a second pen.

How a Pantograph Works A pantograph has one fixed point O (the “Origin”), and two special points P and Q. It has the property that Q traces an enlarged, or "scale" copy of whatever P traces.

2020年3月2日 · Pantographs (see Figs. 1–2) have been widely used for centuries; for example, in surveying and embroidery. With these devices, drawings can be enlarged and reduced. Christoph Scheiner from Germany (1603) is considered the inventor.

2015年8月8日 · The pantograph is a mechanical linkage that allows identical or scaled copies of an image to be traced. Swinging/rocking mechanisms use cranks, slots, levers or cams to produce oscillating motions of less than 360 degrees.

The pantograph mechanism is used to design and fabricate a milling machine which could traverse on any contour provided that stylus is moved along the same on any already existing object. Using such kind of manipulator we can generate the de-scaled replica of the object or we can say it to be a copying machine which can be employed in mass ...

A pantograph is an instrument used to reproduce an enlarged or a reduced scale and as exactly as possible the path described by a given point. It consists of a jointed parallelogram ABCD as shown in Figure 1.