3Dator Bowden Extruder MK8 gear (M6 fitting)

My remix of great 3Dator Bowden Extruder.
Look on M10 Fitting remix too, if you like to play with lathe.
http://www.thingiverse.com/thing:2027378

!!!ALL MY MOUNTS FOR EVERY VERSION OF EXTRUDER IS HERE!!!
http://www.thingiverse.com/thing:2027391

Changes :
-completly redrawned for MK8 gear
-added inspection hole for gear (visible on the second image)
-changed square M3 nuts to classic M3 nuts

i2 changes:
-usage of PC4-M6 instead of PC4-M5 for longer lifetime. (PC4-R1/8 version plan