The author remixed this model.
I just uploaded the two parts I had to mod to make fit @RyanHo_187051 great design of a fully 3d printed set of headphones. All of the other parts you will find from his original design linked below.
My son had dropped and broken these headphones and there really aren't any replacement parts for them online, decided to make the cups fit at the original angle of the Sony's and they fit and work great again :)
https://www.printables.com/model/905734-variable-openmod-part-2-fully-open-source-diy-head