Kobayashi Fidget Cube - Stronger Flat Hinge

A slight remix of the original flat hinge design, http://www.thingiverse.com/thing:1308382
Internally the hinges are flared out a bit at the ends to make them stronger.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/hTVDT4TxmAT