Underdesk mount for headphones with access holes for screwing it in. The geometry is loosely inspired by the design of https://www.thingiverse.com/thing:2810134, but I drafted my own parametric design and I included enough clearance to comfortable insert the headphones under the desk and and a large lip to stop them from slipping out.

The attached FreeCAD file is parametric and can be used to customize some dimensions of the hook. Two instantiations are included:

• The HD560s variant matches the dimensions of Sennheiser headphones.

• The InstrumentCable variant is a little bigger, and can accommodate a larger coil of instrument cable.

Print in the orientation as in the file with tree supports on the build plate. I used Creality Hyper PLA, 6 walls, 12 top and bottom shells, and 30% cross hatch infill to stop the hook from bending under the weight of the headphones or the cable too much.