Inspired by Jerware
This is a solution to mounting Koss Porta Pro speakers to an Oculus Quest VR headset.
The headset can rotate freely and height can be adjusted. It is easy to assemble. Both the Koss speakers, the Oculus Quest mount, and the cable are pop-on. Attaching the speakers does requires a bit of force.
The beams have built in cable ducts that support 1.6Ø mm cable. I harvested the cable of some old earphone. The 3.5mm jack connectors pictured are some that I had in stock. I have ordered some right angled ones because I think they are a better fit but I haven't received them yet.
There is no reason to buy the Koss Porta Pro headphones as replacement speakers can be bought cheaply on places like AliExpress.
Please be aware that this print relies on some tight tolerances to work well. I recommend printing it in PETG at a 0.15 layer height. I have included the Fusion 360 file so that you can adjust the tolerances yourself or modify the design to your liking.
I printed the beams with 4 perimeters and 25% gyroid infill.
The mounts should be printed in the orientation provided with supports. This ensures a nice finish on the knob part that will be sliding in the dovetail on the beam. The rough finish above the supports will be hidden by the headband.