This is a part that broke on my daughter headphones that allowed to fold and adjust size. Modeled in Fusion 360 and tested good to fix broken part from a P47 type headphones with colored led cat ears.

I printed with the curved flat area of the hinge in the bed and using support in a FFF FLSUN i3 as it was easier to remove support and sand the curved surface.

Here a youtube of the result https://youtube.com/shorts/rHV422ry-GI