Jens Dyvik experimented with the ShopBot milling machine to create a drawing on a spare piece of 18-mm multiplex board.
The first step is to prepare the illustration. Jens used an auto-generation system on the Grasshopper 3D software to make the ants illustration.
Replace the end mill with a black marker, and set the spindle speed to zero. You’re good to go!
Youtube Video: http://www.youtube.com/watch?v=kBLsA7B7m74
Also check out Jens’ post about the project on his website.