hinge
thingiverse
I successfully installed a hinge that utilizes a sphere, carefully fitting it into a precisely crafted hollow sphere recess created through 3D printing, which proved to be a bit tricky initially but ultimately yielded an incredibly smooth operation.
Download Model from thingiverse
With this file you will be able to print hinge with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on hinge.