A tracing pantograph in use
<div style="display:inline-block;padding:0 3px;background-color:#CCF">Original:</div> <div style="display:inline-block;padding:3px 0;">Inigolv</div> <div style="display:inline-block;padding:0 3px;background-color:#CCF">Vector: </div> <div style="display:inline-block;"><a href="//commons.wikimedia.org/w/index.php?title=User:Doanri&amp;action=edit&amp;redlink=1" class="new" title="User:Doanri (page does not exist)">Doanri</a></div>
CC BY-SA 4.0
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Pantograph_in_action.png" title="File:Pantograph in action.png">Pantograph in action.png</a>