{ "schema_version": "1.0", "model_spec_kind": "parametric_cad_model", "model_id": "targeted_015133", "units": "mm", "reconstruction": { "mode": "exact_step_base", "source": { "path": "source.step", "sha256": "97f9763fe46700d0a23fa052b08c119e7352275b4e850cb8ed8c77f85e29f4c3", "geometry_signature": { "size_mm": [ 213.5, 78.5, 76.0 ], "center_mm": [ 0.0, 39.25, 0.0 ], "solid_count": 1, "face_count": 199, "edge_count": 488, "volume_mm3": 1174741.621833 } }, "history_recovery": { "status": "not_present_in_step", "contract": "Preserve the imported B-Rep exactly as the immutable base; represent later edits as named parametric modifications." } }, "parameters": {}, "modifications": [], "outputs": { "step": "targeted_015133.step", "stl": "targeted_015133.stl" }, "validation": { "exact_base_required": true, "geometry_signature_tolerance_mm": 1e-07 } }