This is a handy instrument for copying line drawings or other pictures, and enlarging or reducing them in the process. Here we'll make one that enlarges the original by 2. What you need:
http://users.hubwest.com/hubert/mrscience/pantograph.ht...
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"Pantograph" is a drawing instrument to magnify figures. Tracing the original figure by moving the red point, we can automatically obtain the magnified figure with the pen at the blue point. ... Find the ratio of magnification when the lengths of the arms are defined in the right figure.
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www.ies.co.jp/math/java/geo/panta/panta.html
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Pantograph - Wikipedia, the free encyclopedia
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A pantograph (from Greek roots παντ- 'all, every' and γραφ- 'to write', from their original use for copying writing) is a mechanical linkage connected in a special manner based on parallelograms so ...
en.wikipedia.org/wiki/Pantograph
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Pantograph Plans and Instructions to Make your Own - Or Buy Ready Made ... How to Make a Pantograph ... The pantograph is a simple apparatus for copying drawings, maps, designs, etc., on a reduced or enlarged scale, or to the same size as the original. A sketch of a pantograph is given in Fig. 186. FIG. 186. -
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www.1920-30.com/toys/things-to-make/pantograph.html
www.1920-30.com/toys/things-to-make/pantograph.html
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Late blight, copper dust, and topic maps ... ; The Universal Pantograph by Sam Hunting is licensed under a Creative Commons Attribution-Share Alike 3.0 United States License.
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www.universalpantograph.com/
www.universalpantograph.com/
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Pantograph (rail) - Wikipedia, the free encyclopedia
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A pantograph is a device that collects electric current from overhead lines for electric trains or trams. The term stems from the resemblance to pantograph devices for copying writing and drawings. ...
en.wikipedia.org/wiki/Pantograph_(rail)
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[Make your own Pantograph--Use the information on the website and the materials provided to construct your own pantograph. ] ... What is a Pantograph? A Pantograph is a mechanical linkage that is designed for copying drawings and pictures and can also be used to enlarge or reduce them.
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www.cs.smith.edu/~orourke/DTS/pantographs.htm
www.cs.smith.edu/~orourke/DTS/pantographs.htm
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An applet of a Pantograph -This link gives an interactive illistration on how a Pantograph works. You can use the pantograph in the applet and get the feel of what goes on when using one.
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www.cs.smith.edu/~orourke/DTS/pantograph.html
www.cs.smith.edu/~orourke/DTS/pantograph.html
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[păńtə-grăf́]
