JML Bowden carriage mod for the Wanhao i3 Duplicator

This is a x-carriage for the Wanhao i3, i have spent a long time designing this and printed many test pieces to get it as clean and light as possible,
The reason for designing and printing this is the whole new carriage with all accessories weights less than the extruder alone (only 165 grams as apposed to 220 grams for the extruder alone), and i didnt like all that weight swinging back and forth causing inertia problems,
All the extras you will need are,

1xM5x40mm with nut
4xM4x20mm wit