Headphone case holder

Printed with 0.3 layers, no support needed, the slope is 45 degrees. Preferably use 1.5cm long screws, longer screws are possible as well (I left the holes opened) but it's not as pretty (in my case I didn't have any shorter screws by hand and was too busy to go and get some from a hardware shop, so I just used what I lying found around). You can use bolts as well, and have nuts on either side. Again this design is not pretty, but practical. The headphones either have to have a gap in the middle (split) or they have to be thin (under 1.5cm). Designed around MS LifeChat LX-3000 headphones, but should fit other models.

UPDATE: Longer version by 6mm with a 10 to 14mm hole in the middle added, to support TrackIR TrackClip attached to the headphones.