About this 3D model
Here is a fully printable frame of glasses, made available by https://VirtualTryOn.fr, a web solution that allows opticians to customize frames so that they perfectly match the faces of their customers. Do not hesitate to talk about VirtualTryOn.fr to your optician! For more robust hinges, you can also opt for 3D SLS printing here: https://www.shapeways.com/shops/only-mine-eyewear