diff --git a/ausarbeitung.ipynb b/ausarbeitung.ipynb
index fc2e3ba27bd195b6575477276e38a689287486af..c44b5fb06ffa864ddbca15a7f38a518954171460 100644
--- a/ausarbeitung.ipynb
+++ b/ausarbeitung.ipynb
@@ -202,7 +202,13 @@
    "outputs": [],
    "source": [
     "# aggregate components\n",
-    "\n"
+    "\n",
+    "wheels = []\n",
+    "\n",
+    "for i in range(4):\n",
+    "    wheel = LegoAssembly(AggregationLayer.SUBASSEMBLY, f\"wheel_{i+1}\", assembly_method=\"join lego blocks\")\n",
+    "    wheel.add([rims[i], tires[i]])\n",
+    "    wheels.append(wheel)"
    ]
   },
   {