Snap-on Filament Filter/Oiler

The Raise3D filament run-out sensor's feed hole needs a better chamfer. I bored it out, but there's still a but of roughness to it that creates a fine dust as the filament runs against it (might also be the optical sensor feed path). Anyway, I hope something like this will help contain the dust and keep it away from the extruder and hot-end. I had to enlarge one of the holes in this holder so it would friction-fit to the Capricorn tube. Fingers crossed!