Headphone holder for shelf

I have migrated to Printables because of the security and UX issues here at Thingiverse. You can find this model here:

https://www.printables.com/model/166846-headphone-holder-for-shelf

I made this to go in an Gnedby CD shelf from IKEA. The fixed middle shelf is 20 mm thick and a little over 160 mm wide.

This holder is designed to hold larger headphones like Sennheiser HD 600.
Settings for my UMO+ and Cura: * Shell thickness: 1.2mm. * Top/bottom: 1.4mm. * 100% infill. * 0.1 mm layer h