New to LBM and OpenLB? Attend our upcoming one-week hands-on Spring School in Marseille/France from 19.05.2025 – 23.05.2025. OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Using STL generated from blender › Reply To: Using STL generated from blender November 13, 2022 at 6:08 pm #7024 mathiasKeymaster Two serfaces (i.e. stl triagles) parallel and close to eachother.