A set of brackets that are compatible with the Brio Builder series (a fantastic building kit for kids, made of both wooden and plastic pieces, somewhat similar to Meccano). The angled bracket is very similar to the official one, but I have not seen the L-bracket and twisted bracket in any official kits.
The pieces are 22 mm wide and 5 mm thick, the holes are 10 mm in diameter spaced every 32 mm. They were printed on a Bambu X1C in PLA plastic using 0.2 mm layers, 3 walls and 15% honeycomb infill and have survived so far.
I am not affiliated with Brio.
The author marked this model as their own original creation.