I have no ties to this company just saw this and thought it would be pretty F'n cool to build my own ramps. If it had something to rotate it up to do 3D and also had a cutter built in it'd be amazing.
http://www.engadget.com/2013/11/08/diwire-attempts-to-fill-the-gaps-left-by-3d-printers-hands-on/