Prusa i3 X-Carriage with X-endstop mount and filament chiller

EDIT:
Use it for a long time. Now this design is DEPRECATED. This uses a GT2.5 belt.
I'm working on a new one.
This has some flaws in usability. Specially the carriage is quite a design mess. Next version will be done in OpenSCAD.
Thanks for you patience.

That's my last work, 10 hours of hard modelling ^^.
What I hate a lot of Prusa i3 X Carriage is the wristbands to hold the linear bearings. I think this is a misuse of nylon and time anytime I need to dismantle my printer.
So I dec