I had a WEN compound miter saw for some time and recently got a larger Rigid shop vac for improved dust collection and needed an adapter to improve this connection. I have attached the OpenSCAD code for anyone who needs to modify the model. I would recommend TPU for some flexibility and durability (it was a fraction of a mm wide when attaching to the miter saw, which I was able to fix with a zip tie due to the flex), but this should be fine with PLA or any other material.
Printer: Creality Ender 3 Max Neo
Material: TPU
Walls: 4
Infill: 20% (with 4 walls, this is irrelevant; it will be effectively 100% infilled)
The author marked this model as their own original creation.