Probably not what you like to hear, but I would export as *.3ds from ArchiCAD and open it in 3ds max to export to STL. 3ds max (and VIZ) have specific STL-control tools to see if the model is allright (doesn't have holes to confuse the 3D-printer).
--- stefan boeykens --- bim-expert-architect-engineer-musician ---
Archicad28/Revit2024/Rhino8/Solibri/Zoom
MBP2023:14"M2MAX/Sequoia+Win11
Archicad-user since 1998
my Archicad Book