Summary

Simple Parametric Curtain Rod Hanger I quickly made up in Autodesk 360. You'll need 360 to customize it and export an STL.

Autodesk Public Link to File: https://a360.co/3ctgtGW
File also uploded as well.

Open up the parameters to change things around.

If you need a custom size rod let me know so I can put some example STLs up.

Print sideways for maximum strength. Large layers recommended.