I've been meaning to do something about this hose for ages. I usually drape it over the conduits going to the Mill from the Control Cabinet, but it sometimes slips off or gets in the way.
So here's a simple 3D printed tidy that clips over the 40mm square tube that's holding the keyboard and monitor. Originally I designed a flat ended extrusion with the curved channel on the side. However, that would have needed a lot of supports to print the overhangs.
In the end, I made the 40mm square part really long, and then chopped through the whole model from the centre of the radius to remove everything except the middle portion. That meant that the ends were flat, and could be set down on the build platform without the need for any supports.