Corner bracket

Corner bracket to attach stuff to other things, for 3.5 mm screws. Its outer dimensions are 40x40x15 mm and can be scaled to fit your needs.

Disclaimer: Use it to at your own risk, use your brain. It is flimsy plastic, not strong like steel and quality may very depending on your 3D printer. Do not use it to uphold shelves or other heavy/valuable/dangerous things.

I used this to mount my cabinet to the wall, it was already quite sturdy but was at risk of falling if I pulled to hard on the door handle.