Wire guide 2020 Extrusion through

To make a clean wiring for The filter (2x sides and center) i decided to drill my bed 2020 extrusion.

I drilled it with 5.5 mm drill bit. Then i used 2 of them, one on each side, just clipped in the 2020 extrusion. Also i put a short piece of heating skreakable sleeve in it, to avoid damagins the wires.

As simple as this.