HyperCube - E3D mount - prototype

I got a question from a user here. "Have you thought about redesigning the X carriage?"

So I gave it a try. With this design, you could gain about 20mm of printarea, I think.

You don't need to print out a new x-carriage to use this.

I've added the FreeCad file if you want to work with this yourself.

Update 18.02.2017
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I've made a new prototype that have the X-Carriage and the e3d mount in one object. This will probably be a difficult print, but I've made it as