I did not design this model, only remixed it.
I wanted to try open back headphones and I was in the process of repairing my ATH-M40x headphones. I found the original model and modified it to try out a kind of open back style headphone.
The included photo doesn't look the cleanest. I was a bit lazy with my print settings.
The author remixed this model.
I took the original model and added a pattern of hexagonal holes.