Set of apartment blocks, stackable as high as you want to create larger or on floor living blocks to add to you model trains.Doors and windows are not cut through, so easy to print and you have recesses to paint the windows and doors.
I always loved the tiny Z Gauge for the bigger landscapes you could create with it. Now with 3 printing i was aiming for making a whole little city with little costs. Z Gauge size doesnt need lots of details, most of the illusion comes from the painting - another reason 3 printing is really nice for this scale.
Models are 1 to 87 scale ( H0 Gauge scale ) anyway - its easiert to model and handle. So if you want you can print everything for H0 as well.
If you want to use it for Z Gauge (as intended!) just resize to 40% in your slicer before printing (1 to 220 Scale).