Creality Ender-4 E3D v6 fan holder

This part was designed to attach a radial part cooling fan to an ender-4 equipped with a E3D v6. It was designed to fit perfectly to this E3D mount:
https://www.thingiverse.com/thing:2466877

It is designed for CR-10 style radial fan.

As a fan duct you can use for instance this one:
https://www.thingiverse.com/thing:2221647

To make more space for attaching, please turn around the lower wheel stud.