Acrylic printers Y-belt tensioner

I remixed part 3 of this tensioner to fit M6 idler bolt which is used on my Raiscube R2 printer's Y-axis idler.

The original design is by YoshiCat. His part 1 and part 2 is unaltered.
The M3 and M5 version of part 3 is from butchja, included in case someone need them.

BOM:
- 2 M3x25 bolt & nut set. One to work as adjustable tensioner and another to act as axle between part 2 and part 3.
- 2 M3 washer to spread out the load of M3's bolt.