Syringe extruder for Nutella or any other pasty material.

Why don't transform Prusa i3 Sunhokey to become a printer which can extrude pasty materials including Nutella? This kit is a remix of http://www.thingiverse.com/thing:1297 and http://www.thingiverse.com/thing:375374 that can be mounted on my designed universal X carriage for Pusua i3 Sunhokey http://www.thingiverse.com/thing:871433. The syringe can be filled with 60 cc of pasty material and it can be removed from the stand to wash it and refill. To install the kit unscrew the two rear screws of