thanks to user s_kohls submission, especially with the fusion360 file, it was easy for me to create a slightly modification by tilting the plug slot a bit upwards. I preferred to let the force of gravity do the job of keeping the plug ;)
my modified f360 file is also available for download..
type_2_cable_plug_holdert_v2.f3d | 284.2KB | |
Wandhalterung.stl | 571.1KB |