Printable design file has been modified from the original design to remove the cut-out hole at the bottom. You will need to make your own hole to pass wires through.
Also included is the m3d source design file to be used with Kompas 3D student edition. Regular edition of the software cannot open this project. Student edition seems to only be in Russian language. I couldn't find a way to switch language to something else.
Example of what it looks like on wall:
