Complete Modification of Prusa i3 Mk2

Here's the complete 3d printer design

Z AXIS:
I have modify Z axis of Prusa i3 Mk2 design get precision move and anti z wobble
http://www.thingiverse.com/thing:2252743

Y AXIS:
-Y axis slider bracket I design to make easy installation.
-Y belt tensioner just modify from http://www.thingiverse.com/thing:1031592 to get less height
- LM8UU bracket already synchronize and matching with Bed Y axis (for bed in dxf format for cnc router cutting)
- for Y axis nema 17 bracket can use steel b