diff --git a/launch/open_manipulator_cam_env.launch b/launch/open_manipulator_cam_env.launch
index 556ccd7..c908cc4 100755
--- a/launch/open_manipulator_cam_env.launch
+++ b/launch/open_manipulator_cam_env.launch
@@ -10,7 +10,7 @@
   <!-- robot URDF parse args -->
   <arg name="om_urdf" value="robot_description"/>
   <arg name="urdf_param" default="/robot_description"/>
-  <param name="$(arg om_urdf)" textfile="$(find kair_algorithms)/urdf/open_manipulator_with_cam.urdf.xacro"/>
+  <param name="$(arg om_urdf)" textfile="$(find kair_algorithms)/urdf/open_manipulator_cam.urdf.xacro"/>
   <arg name="load_robot_description" default="false"/>
 
   <!-- gazebo related -->
diff --git a/urdf/open_manipulator_with_cam.urdf b/urdf/open_manipulator_with_cam.urdf
deleted file mode 100755
index 5ec512c..0000000
--- a/urdf/open_manipulator_with_cam.urdf
+++ /dev/null
@@ -1,306 +0,0 @@
-<?xml version="1.0" ?>
-  <robot name="open_manipulator" xmlns:xacro="http://ros.org/wiki/xacro">
-    <material name="black">
-      <color rgba="0.0 0.0 0.0 1.0"/>
-    </material>
-    <material name="white">
-      <color rgba="1.0 1.0 1.0 1.0"/>
-    </material>
-    <material name="red">
-      <color rgba="0.8 0.0 0.0 1.0"/>
-    </material>
-    <material name="blue">
-      <color rgba="0.0 0.0 0.8 1.0"/>
-    </material>
-    <material name="green">
-      <color rgba="0.0 0.8 0.0 1.0"/>
-    </material>
-    <material name="grey">
-      <color rgba="0.5 0.5 0.5 1.0"/>
-    </material>
-    <material name="orange">
-      <color rgba="1.0 0.423529411765 0.0392156862745 1.0"/>
-    </material>
-    <material name="brown">
-      <color rgba="0.870588235294 0.811764705882 0.764705882353 1.0"/>
-    </material>
-    <!-- World -->
-    <link name="world">
-    </link>
-    <!-- World fixed joint-->
-    <joint name="world_fixed" type="fixed">
-      <origin rpy="0 0 0" xyz="0 0 0"/>
-      <parent link="world"/>
-      <child link="link1"/>
-    </joint>
-    <!-- Link 1 -->
-    <link name="link1">
-      <visual>
-        <origin rpy="0 0 0" xyz="0 0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link1.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-        <material name="grey"/>
-      </visual>
-      <collision>
-        <origin rpy="0 0 0" xyz="0 0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link1.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-      </collision>
-      <!--    <inertial>
-        <origin xyz="0 0 0" />
-        <mass value="0.082" />
-        <inertia ixx="0.1" ixy="0.0" ixz="0.0"
-                 iyy="0.1" iyz="0.0"
-                 izz="0.1" />
-      </inertial>-->
-      <inertial>
-        <origin xyz="3.0876154e-04 0.0000000e+00 -1.2176461e-04"/>
-        <mass value="7.9119962e-02"/>
-        <inertia ixx="1.2505234e-05" ixy="0.0" ixz="-1.7855208e-07" iyy="2.1898364e-05" iyz="0.0" izz="1.9267361e-05"/>
-      </inertial>
-    </link>
-    <!-- Joint 1 -->
-    <joint name="joint1" type="revolute">
-      <parent link="link1"/>
-      <child link="link2"/>
-      <origin rpy="0 0 0" xyz="0.012 0.0 0.017"/>
-      <axis xyz="0 0 1"/>
-      <limit effort="1" lower="-2.82743338823" upper="2.82743338823" velocity="4.8"/>
-    </joint>
-    <!--  Link 2 -->
-    <link name="link2">
-      <visual>
-        <origin rpy="0 0 0" xyz="0 0 0.019"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link2.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-        <material name="grey"/>
-      </visual>
-      <collision>
-        <origin rpy="0 0 0" xyz="0 0 0.019"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link2.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-      </collision>
-      <!--    <inertial>
-        <origin xyz="0 0 0" />
-        <mass value="0.098" />
-        <inertia ixx="0.1" ixy="0.0" ixz="0.0"
-                 iyy="0.1" iyz="0.0"
-                 izz="0.1" />
-      </inertial>-->
-      <inertial>
-        <origin xyz="-3.0184870e-04 5.4043684e-04 0.047433464"/>
-        <mass value="9.8406837e-02"/>
-        <inertia ixx="3.4543422e-05" ixy="-1.6031095e-08" ixz="-3.8375155e-07" iyy="3.2689329e-05" iyz="2.8511935e-08" izz="1.8850320e-05"/>
-      </inertial>
-    </link>
-    <!--  Joint 2 -->
-    <joint name="joint2" type="revolute">
-      <parent link="link2"/>
-      <child link="link3"/>
-      <origin rpy="0 0 0" xyz="0.0 0.0 0.0595"/>
-      <axis xyz="0 1 0"/>
-      <limit effort="1" lower="-1.79070781255" upper="1.57079632679" velocity="4.8"/>
-    </joint>
-    <!--  Link 3 -->
-    <link name="link3">
-      <visual>
-        <origin rpy="0 0 0" xyz="0 0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link3.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-        <material name="grey"/>
-      </visual>
-      <collision>
-        <origin rpy="0 0 0" xyz="0 0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link3.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-      </collision>
-      <!--    <inertial>
-        <origin xyz="0 0 0" />
-        <mass value="0.136" />
-        <inertia ixx="0.1" ixy="0.0" ixz="0.0"
-                 iyy="0.1" iyz="0.0"
-                 izz="0.1" />
-      </inertial>-->
-      <inertial>
-        <origin xyz="1.0308393e-02 3.7743363e-04 1.0170197e-01"/>
-        <mass value="1.3850917e-01"/>
-        <inertia ixx="3.3055381e-04" ixy="-9.7940978e-08" ixz="-3.8505711e-05" iyy="3.4290447e-04" iyz="-1.5717516e-06" izz="6.0346498e-05"/>
-      </inertial>
-    </link>
-    <!--  Joint 3 -->
-    <joint name="joint3" type="revolute">
-      <parent link="link3"/>
-      <child link="link4"/>
-      <origin rpy="0 0 0" xyz="0.024 0 0.128"/>
-      <axis xyz="0 1 0"/>
-      <limit effort="1" lower="-0.942477796077" upper="1.38230076758" velocity="4.8"/>
-    </joint>
-
-    <!--  Link 4 -->
-    <link name="link4">
-      <visual>
-        <origin rpy="0 0 0" xyz="0 0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link4.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-        <material name="grey"/>
-      </visual>
-      <collision>
-        <origin rpy="0 0 0" xyz="0 0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link4.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-      </collision>
-      <!--    <inertial>
-        <origin xyz="0 0 0" />
-        <mass value="0.131" />
-        <inertia ixx="0.1" ixy="0.0" ixz="0.0"
-                 iyy="0.1" iyz="0.0"
-                 izz="0.1" />
-      </inertial>-->
-      <inertial>
-        <origin xyz="9.0909590e-02 3.8929816e-04 2.2413279e-04"/>
-        <mass value="1.3274562e-01"/>
-        <inertia ixx="3.0654178e-05" ixy="-1.2764155e-06" ixz="-2.6874417e-07" iyy="2.4230292e-04" iyz="1.1559550e-08" izz="2.5155057e-04"/>
-      </inertial>
-    </link>
-    <!--  Joint 4 -->
-    <joint name="joint4" type="revolute">
-      <parent link="link4"/>
-      <child link="link5"/>
-      <origin rpy="0 0 0" xyz="0.124 0.0 0.0"/>
-      <axis xyz="0 1 0"/>
-      <limit effort="1" lower="-1.79070781255" upper="2.04203522483" velocity="4.8"/>
-    </joint>
-
-    <!--  Link 5 -->
-    <link name="link5">
-      <visual>
-        <origin rpy="0 0 0" xyz="0 0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link5.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-        <material name="grey"/>
-      </visual>
-      <collision>
-        <origin rpy="0 0 0" xyz="0 0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link5.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-      </collision>
-      <!--    <inertial>
-        <origin xyz="0 0 0" />
-        <mass value="0.141" />
-        <inertia ixx="0.1" ixy="0.0" ixz="0.0"
-                 iyy="0.1" iyz="0.0"
-                 izz="0.1" />
-      </inertial>-->
-      <inertial>
-        <origin xyz="4.4206755e-02 3.6839985e-07 8.9142216e-03"/>
-        <mass value="1.4327573e-01"/>
-        <inertia ixx="8.0870749e-05" ixy="0.0" ixz="-1.0157896e-06" iyy="7.5980465e-05" iyz="0.0" izz="9.3127351e-05"/>
-      </inertial>
-    </link>
-    <!--  Gripper link -->
-    <link name="gripper_link">
-      <visual>
-        <origin rpy="0 0 0" xyz="0.0 0.0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link_grip_l.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-        <material name="grey"/>
-      </visual>
-      <collision>
-        <origin rpy="0 0 0" xyz="0.0 0.0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link_grip_l.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-      </collision>
-      <inertial>
-        <origin xyz="0 0 0"/>
-        <mass value="0.017"/>
-        <inertia ixx="1.0e-03" ixy="0.0" ixz="0.0" iyy="1.0e-03" iyz="0.0" izz="1.0e-03"/>
-      </inertial>
-      <!--     <inertial>
-        <origin xyz="${0.028 + 8.3720668e-03} ${0.0246 + 9.9696160e-03} -4.2836895e-07" />
-        <mass value="3.2218127e-02" />
-        <inertia ixx="9.5568826e-06" ixy="2.8424644e-06" ixz="-3.2829197e-10"
-                 iyy="2.2552871e-05" iyz="-3.1463634e-10"
-                 izz="1.7605306e-05" />
-      </inertial>-->
-    </link>
-    <!--  Gripper joint -->
-    <joint name="gripper" type="prismatic">
-      <parent link="link5"/>
-      <child link="gripper_link"/>
-      <origin rpy="0 0 0" xyz="0.0817 0.021 0.0"/>
-      <axis xyz="0 1 0"/>
-      <limit effort="1" lower="-0.010" upper="0.019" velocity="4.8"/>
-    </joint>
-
-    <!--  Gripper link sub -->
-    <link name="gripper_link_sub">
-      <visual>
-        <origin rpy="0 0 0" xyz="0.0 -0.0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link_grip_r.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-        <material name="grey"/>
-      </visual>
-      <collision>
-        <origin rpy="0 0 0" xyz="0.0 -0.0 0"/>
-        <geometry>
-          <mesh filename="package://open_manipulator_description/meshes/chain_link_grip_r.stl" scale="0.001 0.001 0.001"/>
-        </geometry>
-      </collision>
-      <inertial>
-        <origin xyz="0 0 0"/>
-        <mass value="0.017"/>
-        <inertia ixx="1.0e-03" ixy="0.0" ixz="0.0" iyy="1.0e-03" iyz="0.0" izz="1.0e-03"/>
-      </inertial>
-      <!--     <inertial>
-        <origin xyz="${0.028 + 8.3720668e-03} ${-0.0246 - 9.9696160e-03} -4.2836895e-07" />
-        <mass value="3.2218127e-02" />
-        <inertia ixx="9.5568826e-06" ixy="2.8424644e-06" ixz="-3.2829197e-10"
-                 iyy="2.2552871e-05" iyz="-3.1463634e-10"
-                 izz="1.7605306e-05" />
-      </inertial>-->
-    </link>
-    <!--  Gripper joint sub -->
-    <joint name="gripper_sub" type="prismatic">
-      <parent link="link5"/>
-      <child link="gripper_link_sub"/>
-      <origin rpy="0 0 0" xyz="0.0817 -0.021 0"/>
-      <axis xyz="0 -1 0"/>
-      <limit effort="1" lower="-0.010" upper="0.019" velocity="4.8"/>
-      <mimic joint="gripper" multiplier="1"/>
-    </joint>
-
-    <!-- end effector joint -->
-    <joint name="end_effector_joint" type="fixed">
-      <origin rpy="0 0 0" xyz="0.126 0.0 0.0"/>
-      <parent link="link5"/>
-      <child link="end_effector_link"/>
-    </joint>
-    <!-- end effector link -->
-    <link name="end_effector_link">
-      <visual>
-        <origin rpy="0 0 0" xyz="0 0 0"/>
-        <geometry>
-          <box size="0.01 0.01 0.01"/>
-        </geometry>
-        <material name="red"/>
-      </visual>
-      <inertial>
-        <origin rpy="0 0 0" xyz="0.0 0.0 0.0"/>
-        <mass value="0.001"/>
-        <inertia ixx="1.0e-06" ixy="0.0" ixz="0.0" iyy="1.0e-06" iyz="0.0" izz="1.0e-06"/>
-      </inertial>
-    </link>
-  </robot>