“This 3D-printable adapter can be added to the dust cover of the Maslow4 so that you can easily attach your shop vac hose.”
The hose port measures:
44.45mm ID (1.75in)
48.45mm OD (1.907in)
If there's any interest for other hose diameters, I can uploaded them upon request and as I have time.
The original CAD is in OnShape and partially parameterized for anyone who wants have at it themselves.
https://cad.onshape.com/documents/edaf1874c3a0f4b661e6bf97/w/f7e3227197fb70475624b4f6/e/4e7dca22cbf58c1cfd2819bf?renderMode=0&uiState=668499674cfa295e9f2ed7fa
The author remixed this model.
I liked the dust collector offered in Maslow CNC's “Not Shop," but I wanted less restriction in the flow and a different angle for my horizontal cutter area. As a happy side effect, it prints beautifully without any supports.