If you want to print your object or building with a 3D printer, you will need an .STL file (stereolithography).
ARCHICAD:
01. Open your project with Archicad.
02. Determine the size of your model with Measure Between Two References: lengh, width and height. Here we have 5072x2179x1471mm.
03. We will need to re-scale our .stl file to make it printable respecting 3D printer specifications. Example: the maximum build size of our 3D printer is 203x203x152mm.