Small Footprint CoreXY Y Carriage (derrivative of Smartrapcore) :: X rods are end-supported and clamped, linear bearings are clamped

See the 3D Model in a better viewer than thingiverse's at Sketchfab:

___https://sketchfab.com/models/b88a3147d5fb47189e2bd58f871331e8/embed___

>This is a design of an Y Carriage for a CoreXY I am building.
>It uses 8mm rods for the X axis and 10mm rod for Y axis. The bearings are 608s.
>Note: the diameter of the rods has been calculated based on their unsupported length and the weight of the parts they'll be supporting. More details you can find [on reprap forums](http://forums.reprap.o