Cube lead screw XY hotend carriage

New video https://www.youtube.com/watch?v=OhLpAUZf8RU
A little video is better than word http://youtu.be/oA6E8RVCTIo
I change a little the STL of XY hotend Carriage to add support for endstop and also to include nuts.
I made this to go with high speed lead screw from Igus. It is a 10mm with a pitch of 50mm with 10 starts. The lead screw with two nuts is around 300$...
I use two bearings 19/10/5 on each X and Y carriage to the opposite of motors for the lead screw.
8 mm stud with LM8UU bearing for guide.
To carry the hotend carriage I use 10mm stud w/LM10UU
It is suppose to work Bowden 3MM extruder and the design is done for a E3D regular hotend.not the bowden one.
The E3D is clipped .
A new video with some improvment concerning the X/Y motor bracket https://www.youtube.com/watch?v=dkuh3Aqka00