Prusa i3 X-Axis Holders

X-axis holders for Prusa I3.

Assembly list:
20 M3x40 bolts
9 M3x30 bolts
29 M3 nuts
4 M5x50 bolts
4 M5 nuts
4 LM8UU bearings
1 2GT 16 tooth teeth synchronous wheel pulley
2 5(id)x20 mm springs

It has non standart distance beetwen shafts - 46.44 mm.
Best use with my X - Carriage http://www.thingiverse.com/thing:1751723