This cable cover was designed for the acrylic side panels of my 3D printer case to cover the cable hole.

The STL models are made for a 42mm hole in a 2mm thick acrylic panel and a 5mm cable (Prusa Mini PSU).

I also provided the Fusion360 file for customization (not parametric but shouldn't be hard).

Usage

The outer ring clips into the acrylic sheet, the inner ring then gets inserted and twisted to lock.