Freebot mobile 3d printer concept with angled extruder

Here is a cool concept of wheeled mobile 3d printer with angled extruder that could print continuous and connected object or series of single objects as it moves.

I wonder what would be other advantages of extruder set with the angle.

There are working mobile 3d printers on wheels and they have extruder  that prints strait on the surface ... This configuration could also work on larger scale as construction work / building 3d printer.






























Source: http://set3dfree.weebly.com/blog/freebot-with-angled-hotend