This is one of the first things I designed to print on my (at the time) new 3D Printer, Bukito. It's a replacement part for a piece on my headphones that broke.
I had good results with a 0.2mm layer height and automatic support from Cura. 0.4mm yielded way too much drooping, even with supports. May require a little fit & finishing on the outside with cutting pliers and/or a blade, and a drill bit to clean up the pin hub, but otherwise it works remarkably well.
P.S. This is listed as the left-side yolk, but obviously you could mirror it in your software to get the right-side if that's what you need.
Replacement speaker yolk (Left side) for Sony MDR-V300 Headphones by juancgarcia is licensed under the Attribution - Non-Commercial - Share Alike license.