I think 3 stars is an inappropriate rating, and now I'll explain why; the hinge is delicate, and it is a question of design, not of printing profile;
The assembly must be done by joining the two halves on the closure side, and pressing the two half hinges together, so that one part slides into the other.
In this way the closure remains safe, and the hinges fit together easily.
I hope you can review your rating, thanks
(Edited)