Mass STL Exporter is an add-on that automates the process of generating and exporting combinations of objects from your Blender scene. It is designed for modular assets, such as a base character with interchangeable clothing, weapons, and accessories.

Users can manually define categories and variants using object or collection names, or auto-generate the configuration based on the project's collection hierarchy in the Outliner. A mandatory objects field ensures that designated base meshes are included in every generated combination. The resulting permutations can be exported directly to an output folder as individual STL files or generated within the current Blender project as separate merged objects.