@Ultravanillasmurf:.
How wide are the roads in your project? / What are the dimensions of the buildings?
You can rescale in different sizes: You can print for 6mm, 15mm, 20mm, 25mm or what you need...
Okay, I was not clear. If the roads and buildings were full sized, how big would they be (I can then work out the scale size). The buildings have been artistically compressed, but to have doors suitable for figures of a scale they have to be a certain size.
Similarly for the roads, the width of the pavement (English term) and the road at a scale of 305mm to the foot.
The road should be wide enough for two scale lorries to be placed side by side but unless it is representing Harlem, the pavement should be no wider than two infantry figure bases.
Of course single track roads and narrow pavements are additional features but would need to be scaled so the connectors lined up.
Why are the location tabs on the 3D model the other way round on the printed examples?
What do you mean?
In the animated picture showing the assembly of the two buildings the tabs are on the left facing the front and rear but on the physical models they are on the side panels and on the right side. They are also in different positions for the ground and first floor on the physical models. If they are a print they should be the same.