diff --git a/examples/calibration_post_processing.ipynb b/examples/calibration_post_processing.ipynb
index 1d0aa0b..a9c6c33 100644
--- a/examples/calibration_post_processing.ipynb
+++ b/examples/calibration_post_processing.ipynb
@@ -527,7 +527,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 45,
+   "execution_count": 37,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -735,14 +735,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 26,
+   "execution_count": 35,
    "metadata": {},
    "outputs": [],
    "source": [
-    "t=[-0.02557, 0, 0.04232]\n",
-    "R = Rotation.from_euler(seq='xyz', angles=[0, 0, 0])\n",
-    "q = R.as_quat()\n",
-    "rr.log(\"world/base/imu_bad\", rr.Transform3D(translation=t, rotation=rr.Quaternion(xyzw=q)))"
+    "import numpy as np\n",
+    "result['ext_wrt_base']['lidar_wrt_base']=np.vstack([np.hstack([R.as_matrix(), np.array(t).reshape(3,1)]), np.array([0,0,0,1])])"
    ]
   },
   {