IKEA Bror corner reinforcement

A corner reinforcement for the IKEA Bror cabinet making it more stable and square. 

It fits in between the bars on which the shelf rests and can be attached with a M4 screw and nut to the original holes in the Bror cabinet.

I have made two versions: OpenTop in which you can access the nut insertion holes from the top (so you will need to remove the shelf) and OpenBottom in which you can access the nut insertion holes from the bottom.

Print settings:
I suggest 3 walls minimal.