I am not good at editing stl file, so I redraw it by fusion360.
This distributor fits camlock, because my dust collection all using CAMLOCK system (https://www.printables.com/model/461256-shopvac-50mm-camlock-connectors-with-magnetic-catc).
You may need 3mmx40mm support pins to contact two parts, mid body part can be added many as you like. Also 8 Hot insert nuts needed for right and left side cover.
I printed mine using ABS, all parts fitness designed for ABS.
Printer Brand:
VoronDesign
Printer:
Voron2 300
Rafts:
Doesn't Matter
Supports:
Yes
Infill:
20
Filament: Polymaker ABS