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+      <origin xyz="-0.0675992 -0.000177759 0.0158499" rpy="1.5708 -1.5708 0"/>
+      <geometry>
+        <mesh filename="assets/motor_holder_so101_base_v1.stl"/>
+      </geometry>
+    </collision>
+    <!-- Part rotation_pitch_so101_v1 -->
+    <visual>
+      <origin xyz="0.0122008 2.22413e-05 0.0464" rpy="-1.5708 2.35221e-33 0"/>
+      <geometry>
+        <mesh filename="assets/rotation_pitch_so101_v1.stl"/>
+      </geometry>
+      <material name="3d_printed"/>
+    </visual>
+    <collision>
+      <origin xyz="0.0122008 2.22413e-05 0.0464" rpy="-1.5708 2.35221e-33 0"/>
+      <geometry>
+        <mesh filename="assets/rotation_pitch_so101_v1.stl"/>
+      </geometry>
+    </collision>
+  </link>
+
+  <!-- Link upper_arm -->
+  <link name="upper_arm_link">
+    <inertial>
+      <origin xyz="-0.0898471 -0.00838224 0.0184089" rpy="0 0 0"/>
+      <mass value="0.103"/>
+      <inertia ixx="4.08002e-05" ixy="-1.97819e-05" ixz="-4.03016e-08" iyy="0.000147318" iyz="8.97326e-09" izz="0.000142487"/>
+    </inertial>
+    <!-- Part sts3215_03a_v1_3 -->
+    <visual>
+      <origin xyz="-0.11257 -0.0155 0.0187" rpy="-3.14159 -5.27356e-16 -1.5708"/>
+      <geometry>
+        <mesh filename="assets/sts3215_03a_v1.stl"/>
+      </geometry>
+      <material name="sts3215"/>
+    </visual>
+    <collision>
+      <origin xyz="-0.11257 -0.0155 0.0187" rpy="-3.14159 -5.27356e-16 -1.5708"/>
+      <geometry>
+        <mesh filename="assets/sts3215_03a_v1.stl"/>
+      </geometry>
+    </collision>
+    <!-- Part upper_arm_so101_v1 -->
+    <visual>
+      <origin xyz="-0.065085 0.012 0.0182" rpy="3.14159 -0 -1.30911e-30"/>
+      <geometry>
+        <mesh filename="assets/upper_arm_so101_v1.stl"/>
+      </geometry>
+      <material name="3d_printed"/>
+    </visual>
+    <collision>
+      <origin xyz="-0.065085 0.012 0.0182" rpy="3.14159 -0 -1.30911e-30"/>
+      <geometry>
+        <mesh filename="assets/upper_arm_so101_v1.stl"/>
+      </geometry>
+    </collision>
+  </link>
+
+  <!-- Link lower_arm -->
+  <link name="lower_arm_link">
+    <inertial>
+      <origin xyz="-0.0980701 0.00324376 0.0182831" rpy="0 0 0"/>
+      <mass value="0.104"/>
+      <inertia ixx="2.87438e-05" ixy="7.41152e-06" ixz="1.26409e-06" iyy="0.000159844" iyz="-4.90188e-08" izz="0.00014529"/>
+    </inertial>
+    <!-- Part under_arm_so101_v1 -->
+    <visual>
+      <origin xyz="-0.0648499 -0.032 0.0182" rpy="3.14159 -0 6.67202e-31"/>
+      <geometry>
+        <mesh filename="assets/under_arm_so101_v1.stl"/>
+      </geometry>
+      <material name="3d_printed"/>
+    </visual>
+    <collision>
+      <origin xyz="-0.0648499 -0.032 0.0182" rpy="3.14159 -0 6.67202e-31"/>
+      <geometry>
+        <mesh filename="assets/under_arm_so101_v1.stl"/>
+      </geometry>
+    </collision>
+    <!-- Part motor_holder_so101_wrist_v1 -->
+    <visual>
+      <origin xyz="-0.0648499 -0.032 0.018" rpy="-3.14159 -2.55351e-15 -1.83387e-30"/>
+      <geometry>
+        <mesh filename="assets/motor_holder_so101_wrist_v1.stl"/>
+      </geometry>
+      <material name="3d_printed"/>
+    </visual>
+    <collision>
+      <origin xyz="-0.0648499 -0.032 0.018" rpy="-3.14159 -2.55351e-15 -1.83387e-30"/>
+      <geometry>
+        <mesh filename="assets/motor_holder_so101_wrist_v1.stl"/>
+      </geometry>
+    </collision>
+    <!-- Part sts3215_03a_v1_4 -->
+    <visual>
+      <origin xyz="-0.1224 0.0052 0.0187" rpy="-3.14159 -7.88861e-31 -3.14159"/>
+      <geometry>
+        <mesh filename="assets/sts3215_03a_v1.stl"/>
+      </geometry>
+      <material name="sts3215"/>
+    </visual>
+    <collision>
+      <origin xyz="-0.1224 0.0052 0.0187" rpy="-3.14159 -7.88861e-31 -3.14159"/>
+      <geometry>
+        <mesh filename="assets/sts3215_03a_v1.stl"/>
+      </geometry>
+    </collision>
+  </link>
+
+  <!-- Link wrist -->
+  <link name="wrist_link">
+    <inertial>
+      <origin xyz="-0.000103312 -0.0386143 0.0281156" rpy="0 0 0"/>
+      <mass value="0.079"/>
+      <inertia ixx="3.68263e-05" ixy="1.7893e-08" ixz="-5.28128e-08" iyy="2.5391e-05" iyz="3.6412e-06" izz="2.1e-05"/>
+    </inertial>
+    <!-- Part sts3215_03a_no_horn_v1 -->
+    <visual>
+      <origin xyz="8.32667e-17 -0.0424 0.0306" rpy="1.5708 1.5708 0"/>
+      <geometry>
+        <mesh filename="assets/sts3215_03a_no_horn_v1.stl"/>
+      </geometry>
+      <material name="sts3215"/>
+    </visual>
+    <collision>
+      <origin xyz="8.32667e-17 -0.0424 0.0306" rpy="1.5708 1.5708 0"/>
+      <geometry>
+        <mesh filename="assets/sts3215_03a_no_horn_v1.stl"/>
+      </geometry>
+    </collision>
+    <!-- Part wrist_roll_pitch_so101_v2 -->
+    <visual>
+      <origin xyz="0 -0.028 0.0181" rpy="-1.5708 -1.5708 0"/>
+      <geometry>
+        <mesh filename="assets/wrist_roll_pitch_so101_v2.stl"/>
+      </geometry>
+      <material name="3d_printed"/>
+    </visual>
+    <collision>
+      <origin xyz="0 -0.028 0.0181" rpy="-1.5708 -1.5708 0"/>
+      <geometry>
+        <mesh filename="assets/wrist_roll_pitch_so101_v2.stl"/>
+      </geometry>
+    </collision>
+  </link>
+
+  <!-- Link gripper -->
+  <link name="gripper_link">
+    <inertial>
+      <origin xyz="0.000213627 0.000245138 -0.025187" rpy="0 0 0"/>
+      <mass value="0.087"/>
+      <inertia ixx="2.75087e-05" ixy="-3.35241e-07" ixz="-5.7352e-06" iyy="4.33657e-05" iyz="-5.17847e-08" izz="3.45059e-05"/>
+    </inertial>
+    <!-- Part sts3215_03a_v1_5 -->
+    <visual>
+      <origin xyz="0.0077 0.0001 -0.0234" rpy="-1.5708 -5.19179e-17 -1.66533e-16"/>
+      <geometry>
+        <mesh filename="assets/sts3215_03a_v1.stl"/>
+      </geometry>
+      <material name="sts3215"/>
+    </visual>
+    <collision>
+      <origin xyz="0.0077 0.0001 -0.0234" rpy="-1.5708 -5.19179e-17 -1.66533e-16"/>
+      <geometry>
+        <mesh filename="assets/sts3215_03a_v1.stl"/>
+      </geometry>
+    </collision>
+    <!-- Part wrist_roll_follower_so101_v1 -->
+    <visual>
+      <origin xyz="8.32667e-17 -0.000218214 0.000949706" rpy="-3.14159 -5.55112e-17 0"/>
+      <geometry>
+        <mesh filename="assets/wrist_roll_follower_so101_v1.stl"/>
+      </geometry>
+      <material name="3d_printed"/>
+    </visual>
+    <collision>
+      <origin xyz="8.32667e-17 -0.000218214 0.000949706" rpy="-3.14159 -5.55112e-17 0"/>
+      <geometry>
+        <mesh filename="assets/wrist_roll_follower_so101_v1.stl"/>
+      </geometry>
+    </collision>
+  </link>
+
+  <!-- Gripper frame (dummy link + fixed joint) -->
+  <link name="gripper_frame_link">
+    <origin xyz="0 0 0" rpy="0 -0 0"/>
+    <inertial>
+      <origin xyz="0 0 0" rpy="0 0 0"/>
+      <mass value="1e-9"/>
+      <inertia ixx="0" ixy="0" ixz="0" iyy="0" iyz="0" izz="0"/>
+    </inertial>
+  </link>
+
+  <joint name="gripper_frame_joint" type="fixed">
+    <origin xyz="-0.0079 -0.000218121 -0.0981274" rpy="0 3.14159 0"/>
+    <parent link="gripper_link"/>
+    <child link="gripper_frame_link"/>
+    <axis xyz="0 0 0"/>
+  </joint>
+
+  <!-- Link moving_jaw_so101_v1 -->
+  <link name="moving_jaw_so101_v1_link">
+    <inertial>
+      <origin xyz="-0.00157495 -0.0300244 0.0192755" rpy="0 0 0"/>
+      <mass value="0.012"/>
+      <inertia ixx="6.61427e-06" ixy="-3.19807e-07" ixz="-5.90717e-09" iyy="1.89032e-06" iyz="-1.09945e-07" izz="5.28738e-06"/>
+    </inertial>
+    <!-- Part moving_jaw_so101_v1 -->
+    <visual>
+      <origin xyz="-5.55112e-17 -5.55112e-17 0.0189" rpy="9.53145e-17 6.93889e-18 1.24077e-24"/>
+      <geometry>
+        <mesh filename="assets/moving_jaw_so101_v1.stl"/>
+      </geometry>
+      <material name="3d_printed"/>
+    </visual>
+    <collision>
+      <origin xyz="-5.55112e-17 -5.55112e-17 0.0189" rpy="9.53145e-17 6.93889e-18 1.24077e-24"/>
+      <geometry>
+        <mesh filename="assets/moving_jaw_so101_v1.stl"/>
+      </geometry>
+    </collision>
+  </link>
+
+  <!-- Joint from gripper to moving_jaw_so101_v1 -->
+  <joint name="gripper" type="revolute">
+    <origin xyz="0.0202 0.0188 -0.0234" rpy="1.5708 -5.24284e-08 -1.41553e-15"/>
+    <parent link="gripper_link"/>
+    <child link="moving_jaw_so101_v1_link"/>
+    <axis xyz="0 0 1"/>
+    <limit effort="10" velocity="10" lower="-0.174533" upper="1.74533"/>
+  </joint>
+
+  <!-- Joint from wrist to gripper -->
+  <joint name="wrist_roll" type="revolute">
+    <origin xyz="5.55112e-17 -0.0611 0.0181" rpy="1.5708 0.0486795 3.14159"/>
+    <parent link="wrist_link"/>
+    <child link="gripper_link"/>
+    <axis xyz="0 0 1"/>
+    <limit effort="10" velocity="10" lower="-2.74385" upper="2.84121"/>
+  </joint>
+
+  <!-- Joint from lower_arm to wrist -->
+  <joint name="wrist_flex" type="revolute">
+    <origin xyz="-0.1349 0.0052 3.62355e-17" rpy="4.02456e-15 8.67362e-16 -1.5708"/>
+    <parent link="lower_arm_link"/>
+    <child link="wrist_link"/>
+    <axis xyz="0 0 1"/>
+    <limit effort="10" velocity="10" lower="-1.65806" upper="1.65806"/>
+  </joint>
+
+  <!-- Joint from upper_arm to lower_arm -->
+  <!-- Note: 5-degree calibration offset applied to joint limits -->
+  <joint name="elbow_flex" type="revolute">
+    <origin xyz="-0.11257 -0.028 1.73763e-16" rpy="-3.63608e-16 8.74301e-16 1.5708"/>
+    <parent link="upper_arm_link"/>
+    <child link="lower_arm_link"/>
+    <axis xyz="0 0 1"/>
+    <limit effort="10" velocity="10" lower="-1.69" upper="1.69"/>
+  </joint>
+
+  <!-- Joint from shoulder to upper_arm -->
+  <joint name="shoulder_lift" type="revolute">
+    <origin xyz="-0.0303992 -0.0182778 -0.0542" rpy="-1.5708 -1.5708 0"/>
+    <parent link="shoulder_link"/>
+    <child link="upper_arm_link"/>
+    <axis xyz="0 0 1"/>
+    <limit effort="10" velocity="10" lower="-1.74533" upper="1.74533"/>
+  </joint>
+
+  <!-- Joint from base to shoulder -->
+  <joint name="shoulder_pan" type="revolute">
+    <origin xyz="0.0388353 -8.97657e-09 0.0624" rpy="3.14159 4.18253e-17 -3.14159"/>
+    <parent link="base_link"/>
+    <child link="shoulder_link"/>
+    <axis xyz="0 0 1"/>
+    <limit effort="10" velocity="10" lower="-1.91986" upper="1.91986"/>
+  </joint>
+</robot>