J-Head / E3D Holder v2

I needed to lighten my default extruder head (I have Reprap Mendel Prusa from FolgerTech), therefore I splitted it in two: a bowden extruder (http://www.thingiverse.com/thing:1436572) on a side and a JHead on the other.

Of course I looked on existing JHead / E3D holders and I didn't found a full satisfying model.
As usual I decided to make my own.

I tried to install my previous version (http://www.thingiverse.com/thing:939956) but the sensor bracket has broken and I didn't persisted.
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