Normal 3d-printed brackets can easily break if you overtighten the screws. 

These brackets are specially designed for FDM-3D-printing. Because of their wide surface areas on every layer they can withstand multiple times more force than other 3d-printed brackets.

There are 3 brackets in 2 sizes:

• 32x16

• 32x32

• 32_3-sides

• 24x12

• 24x24

• 24_3-sides

You can download 2 versions of every bracket. The normal versions are made for countersunk screws and the “_flat” versions are for truss, pan or round head screws. 

You can find the drilling distances of every version in the pictures or as PDF download in scale 1:1.