The ferrite core hangs around a bit, because the cable to the basic board is just too short to accommodate the core in the enclosure. Maybe the cables for the basic board differ, mine is a bit too short at this point.

With the model you can hide the core a bit and mount it to the enclosure.

The core on my cable has a diameter of 20 mm and is 40 mm long.

You need the following parts:

• M3 x 6 mm Allen bolt
• M3 hexagon nut

No support needed.

The model was created with FreeCAD.