Belt tensioner for Trium3D printer

-100% infill.
-Pay attention to the pictures to use it the right way.
-The part number 2 has two different sides sizes, the thin side will be in the middle (between the belt sides, so it doesn't touch the other belt side).
-M5 screw and nut, 40mm.
-If the screw didn't fit freely, just drill the holes with 5mm bit (for the small hole use 4mm bit).