Eberhard Engineers have a prototype machine (Fortus 250) that uses ABS material to produce components that can be as big as 8 x 8 x 12" in a process called FDM. (Fused Deposition Modeling)  This machine allows Eberhard to quickly produce components to help with new designs and actually see what a part would look like and how it could work with other components. 

The newest prototype machine (Shown on the table) is now capable of 10 x10 x 12" components.