back bracket of the office chair that broke (seems like a kid chair or just on smaller size)
inside there is additional metal bracket, that came with broken plastic piece.
thus I bend it to what I thought to be the original state
good luck
some other designs, that didn't fit me:
https://www.thingiverse.com/thing:769069
https://www.thingiverse.com/thing:5674534
https://www.thingiverse.com/thing:4793981
https://www.thingiverse.com/thing:1687261
officechair_rear_bracket.stl | 290.7KB | |
office_chair_back_bracket.f3d | 632.2KB |