Belt extruder E3D hotend

i bored wade gear extruder and i made a belt E3d extruder . I am using it 10 days with really good result. I print with 0,4 head and 0.2 layer.
This is not totally mine ,X-cariagge is from here http://www.thingiverse.com/thing:22887/#files and motor base from other
i use only 2,75 abs filament

https://www.youtube.com/watch?v=30GuDx2Iqww
https://www.youtube.com/watch?v=huZ045-yzS8
https://www.youtube.com/watch?v=LzCmAb8ldlA