I designed the base part as two separate prints to be glued together.
I suggest printing the enclosure adapter first and checking if it fits the printer.
The filter enclosure should be printed on the flat back wall and with some support to properly print glueing surfaces.
If you want to modify/remix the project is available on onshape: https://cad.onshape.com/documents/457c7a555989ca2e9ff0fd32/w/89f2bc4e056142aef5a4ee6d/e/4c17aabb46df84b7d3bb77b8
The author remixed this model.
New base part - mounting to the printer enclosure and the filter housing.