I have been looking for a tutorial that shows how to transform a model that was built to be a digital representation of a house to become a 3D printable file. I have watched hours of incredibly unhelpful YouTube videos on 3D printing. My firm wanted first a digital architectural model with interior views rendered for an onscreen presentation. Now they want a printable model of the same house. At this point I don’t think they want interiors. Thanks in advance!!!
You’ll need to create solid groups/components for the elements of the house. If they don’t want the interiors you could delete that stuff and then start going through the remainder to make sure things are solids. Solid Inspector and Solid Inspector2 can be useful for that.
In simple terms a group or component will be considered solid and 3D printable if every edge is shared by exactly two faces and the faces are all correctly oriented. So no stray edges, no holes in faces, no internal faces, and no exposed back faces.
You can also use an extension like CleanUp3 to go through and merge all coplanar faces and further clean up the model.
Work with the Face Style set to Monochrome so materials aren’t masking reversed faces.
Of course you should make sure to purge unused stuff from the model. And do this on a copy of the file, not the original.
Are you still using SketchUp 2022?