prusa i3 rework 1.5 Y belt idler update

As i did with the X belt stretcher ( http://www.thingiverse.com/thing:1562068 ), i made an evolution of the Y belt idler part of the prusa i3 rework 1.5 to be able to use a belt pulley ( www.reprap-france.com/produit/1234568507-poulie-roue-libre ).
As for the X belt stretcher, you'll have to print the y_belt_idler_2 part twice, one for each side of the pulley.