Prusa i3 X-Idler & X-Motor with nut traps 'i2 style'

UPDATE 15/05/15
I upload this new files:
modulo M5_V3.scad
x-end_V3.scad
x-end-idler_V3.scad
x-end-motor_V3.scad

Inter-change position of short & long cut for M5.

UPDATE 13/05/15
I upload this new files:
modulo M5_V2.scad
x-end_V2.scad
x-end-idler_V2.scad
x-end-motor_V2.scad

Now, the M5 hole is divided in two parts (nut1, nut2 variables):

nut1 is the short hole for a fixed M5 nut. Now you can do it a little close and insert nut with iron solder, for example, to