The models can be printed at 3D Printer (ceramic) in order to construct a house. Those 2 are only the basic models. It need I think about 20 derivates of those 2. I have license ViaCAD 2D/3D and I use Ubuntu as OS. If you buy this you will incuraje me to continue my work. My objective is to build a real house with this models. I can offer al the project updates at a reasonable price.