This beautifully constructed model uses gears, rods, wheels, and all kinds of Lego Techinc parts to create a fantastically complicated machine whose sole function is the creation of working paper aeroplanes. Although it has been done in the past, this particular machine works much more smoothly and is a delight to watch, particularly in this video:
https://www.youtube.com/watch?v=yueP7V6Wddc%20
The creator, Arthur Sacek is well known in the Lego community, particularly for his work with Lego Mindstorms and the creation of automated machines. His Milling Machine for example creates brilliant 3D works of art in foam. His Paper Maker one however, is undoubtedly one of his best.