I never shared it, it seemed a bit specific. It might be in my LR3 PLOG… Nope…
It’s a donut. I don’t even remember what I modeled it in (Probably FreeCAD at the time.) It just wedges in (that’s what the taper is for) until it’s tight in the dust shoe and then the hose wedges in until it’s tight in the donut, and a zip tie keeps it from backing out.