Modular Tripple Cable channel

A friend bought himself a new Desk and wanted to have something for cable management.
I myself use a office cable chain (just like this one) with the option of 3 channels to split your cables into.
And I have a 3D-Printer so I thought "just download an stl file somewhere and print it - easy!".
Well well... I didn't find any files online (maybe I'm not skilled enough with google) so I simple created one myself.
I went through many iterations to ensure you can clip them easily together and pull them appart without breaking something.
My goal was also to prevent the need for support-structures.

This is my first design and it can be of any use to you.
Feel free to use/remix if you like.