Hello everyone, I’m currently struggling with a FEM simulation problem related to 3D printed parts, and I hope someone here has experience with a similar workflow. My situation: I designed a part in Autodesk Inventor 2024. The real part is FDM 3D printed with 10% infill and defined wall thicknesses. I want to simulate mechanical loads using FEM. The problem: Inventor’s FEM simulation treats the model as a fully solid body, which massively overestimates stiffness and strength compared to the real printed part. This makes the simulation results unrealistic and not comparable to the physical component. What I am trying to achieve: I want a CAD model that matches the real printed structure, meaning: actual wall thicknesses (perimeters), internal infill geometry (e.g. gyroid / grid), ideally also reflecting the layered nature of FDM printing. My idea was: Start from a STEP (STP) file. Slice it using Bambu Studio (latest version) with the same print settings as the real part. Convert the sliced result back into a CAD model (STEP or at least a clean STL) that includes walls and infill. Use this geometry for FEM simulation. Software used: CAD: Autodesk Inventor 2024 Slicer: Bambu Studio (latest version) My questions: Is there any known workflow to convert sliced geometry (or G-code) back into a usable CAD or FEM-ready solid? Are there tools or plugins that can reconstruct infill and perimeters as real geometry? Or is the recommended approach to use homogenized material models / anisotropic materials instead of real geometry? How do you realistically simulate FDM parts with low infill in FEM? Any advice, tools, papers, or real-world experience would be greatly appreciated. Thanks in advance!#FEM #Engineering #Troubleshooting #converter #Questions