Innovative handheld 3d milling device. It is held in hand and computer controlled to stop when it reaches the outlines of the 3d object. It looks that the handheld 3d printer is also in making.
Update:
http://diy3dprinting.blogspot.com/2013/11/update-video-on-freed-handheld-router.html
Update:
http://diy3dprinting.blogspot.com/2013/11/update-video-on-freed-handheld-router.html