Ensure the drive containing your temporary folder has at least 50GB of free space for large 3D models. 3. Optimize the Mesh
Autodesk Moldflow is the industry standard for plastic injection molding simulation, but even the most robust software can hit a wall. One of the most frustrating hurdles for simulation engineers is the cryptic Error 99998. When your analysis terminates abruptly with this message, it often indicates a fundamental breakdown in the communication between the solver and your hardware or a critical failure in the mesh. What is Autodesk Moldflow Error 99998?
If the error persists across multiple different meshes of the same part: Export the study as an .sdy file. Create a brand-new project. Import the study into the new project. autodesk moldflow error 99998 full
Before diving into complex fixes, it is essential to identify where the failure originated. Most Error 99998 occurrences fall into three categories:
A "dirty" mesh is a leading cause of internal solver crashes. Ensure the drive containing your temporary folder has
Moldflow generates massive temporary files (scratch files) during calculations. If the drive is full or the temporary folder is cluttered, the solver fails. Navigate to your project's temporary storage folder. Close Moldflow entirely. Delete all files in the %TEMP% directory.
Ensure no elements have an aspect ratio exceeding 50:1 (ideally keep them below 20:1 for 3D). One of the most frustrating hurdles for simulation
Run the "Mesh Repair Wizard" to eliminate overlaps, intersections, and free edges.
Extreme aspect ratios or overlapping elements causing mathematical singularities.
Open Windows Task Manager during the "Meshing" and "Filling" phases. If RAM usage hits 90-95%, the OS may kill the Moldflow process, triggering Error 99998.