SmartrapCore 1.0 cables and filament holder

My SmartrapCore from SmartFriendz is really cool, but the cables inside the box are kind of messy and, since I installed the Bowden extrudeur inside the box, and the filament is coming from the roll that is just outside the box, there's a friction between the filament and the box border.
I designed this small and simple piece to resolve both problems : it holds the cables on the right side inside the box, and works as a guide for the filament, to keep it at a not-too-bad angle, and away from a