Due to recent bot attacks we have changed the sign-up process. If you want to participate in our forum please send a message via our contact form. › Forums › OpenLB › General Topics › Importing stl in FreesurfaceBreakingDam model. › Reply To: Importing stl in FreesurfaceBreakingDam model. August 19, 2024 at 2:21 pm #9117 AdrianKeymaster Ok, so you should take a closer look at your geometry setup in the prepareGeometry function.