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2026-07-22 13:48:46 +08:00
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+"""Materials for the four-planet planetary reducer example."""
+
+from __future__ import annotations
+
+import simplecadapi as scad
+
+
+def make_materials_rdict() -> dict[str, scad.Material]:
+    """Create simple material definitions for the exposed gearset."""
+
+    materials = {
+        "gear": scad.make_material_rmaterial(
+            material_id="case_hardened_steel",
+            name="Case hardened gear steel",
+            density=7.85e-6,
+            density_unit="kg/mm^3",
+            color=(0.70, 0.70, 0.74),
+        ),
+        "ring": scad.make_material_rmaterial(
+            material_id="nitrided_internal_ring_steel",
+            name="Nitrided internal ring steel",
+            density=7.85e-6,
+            density_unit="kg/mm^3",
+            color=(0.44, 0.46, 0.50),
+        ),
+        "carrier": scad.make_material_rmaterial(
+            material_id="aluminum_7075_t6",
+            name="7075-T6 aluminum carrier",
+            density=2.81e-6,
+            density_unit="kg/mm^3",
+            color=(0.14, 0.48, 0.70),
+        ),
+    }
+    print("materials: " + ",".join(sorted(materials)))
+    return materials