Duplicate your drawings with a machine

Have you ever wanted to copy a drawing but make it bigger or smaller? If you have tried to create a larger or smaller copy of your work, you have probably found that it is very difficult to get the details right. However, a machine called a pantograph could help. It creates copies that can be scaled up or down or made to the same size. In this exercise, you will make your own pantograph and then duplicate your drawings. Can you figure out how he enlarges, reduces, or flips drawings upside down?