Corners

Two-sided a three-sided corner. Dimensions: 25x25x25(40) mm. Holes with 4mm thread. I used corners for bulit box from polycarbonates sheets 5 mm. I also used this Reversable Hinge: https://www.thingiverse.com/thing:1881492, this Clamp Lever: https://www.thingiverse.com/thing:3378822 and this Handle: https://www.thingiverse.com/thing:3543243.