diff --git a/examples/08_custom_bend_geometry.png b/examples/08_custom_bend_geometry.png
index ecb3f89..5276991 100644
Binary files a/examples/08_custom_bend_geometry.png and b/examples/08_custom_bend_geometry.png differ
diff --git a/examples/08_custom_bend_geometry.py b/examples/08_custom_bend_geometry.py
index 5ff6a88..837d37e 100644
--- a/examples/08_custom_bend_geometry.py
+++ b/examples/08_custom_bend_geometry.py
@@ -34,7 +34,8 @@ def main() -> None:
 
     # 4. Define a custom 'trapezoid' bend model
     # (Just for demonstration - we override the collision model during search)
-    custom_poly = Polygon([(0, 0), (20, 0), (20, 20), (0, 20)]) # Oversized box
+    # Define a custom centered 20x20 box
+    custom_poly = Polygon([(-10, -10), (10, -10), (10, 10), (-10, 10)])
     
     print("Routing with custom collision model...")
     # Override bend_collision_type with a literal Polygon
diff --git a/inire/geometry/components.py b/inire/geometry/components.py
index 0d61862..aa1ce38 100644
--- a/inire/geometry/components.py
+++ b/inire/geometry/components.py
@@ -434,7 +434,8 @@ def _apply_collision_model(
     Applies the specified collision model to an arc geometry.
     """
     if isinstance(collision_type, Polygon):
-        return [collision_type]
+        # Translate the custom polygon to the bend center (cx, cy)
+        return [shapely.transform(collision_type, lambda x: x + [cx, cy])]
 
     if collision_type == "arc":
         return [arc_poly]