stretch_ros/stretch_description/urdf/stretch_gripper.xacro

<?xml version="1.0"?>
<robot xmlns:xacro="http://www.ros.org/wiki/xacro" name="stretch_gripper">

  <xacro:property name="scale_finger_length" value="0.9" />

  <link
    name="link_gripper">
    <inertial>
      <origin
        xyz="-0.0170229132730066 0.0131410320934285 -0.0371614759484659"
        rpy="0 0 0" />
      <mass
        value="0.101902711393094" />
      <inertia
        ixx="0.001"
        ixy="0"
        ixz="0"
        iyy="0.001"
        iyz="0"
        izz="0.001" />
    </inertial>
    <visual>
      <origin
        xyz="0 0 0"
        rpy="0 0 0" />
      <geometry>
        <mesh
          filename="package://stretch_description/meshes/link_gripper.STL" />
      </geometry>
      <material
        name="">
        <color
          rgba="0.792156862745098 0.819607843137255 0.933333333333333 1" />
      </material>
    </visual>
    <collision>
      <origin
        xyz="0 0 0"
        rpy="0 0 0" />
      <geometry>
        <mesh
          filename="package://stretch_description/meshes/link_gripper.STL" />
      </geometry>
    </collision>
  </link>

  <!-- rpy="3.1416 0 1.5708" -->
  <!-- rpy="0.0 0 1.5708" -->
  <joint
    name="joint_gripper"
    type="fixed">
    <origin
      xyz="0 0 0"
      rpy="3.14159 0 -1.5708" />
    <parent
      link="link_wrist_yaw" />
    <child
      link="link_gripper" />
    <axis
      xyz="0 0 0" />
  </joint>
  
  <link
    name="link_gripper_finger_left">
    <inertial>
      <origin
        xyz="0.0945047483510102 0.0124301080924361 -4.44089209850063E-16"
        rpy="0 0 0" />
      <mass
        value="0.0476207785199474" />
      <inertia
        ixx="0.001"
        ixy="0"
        ixz="0"
        iyy="0.001"
        iyz="0"
        izz="0.001" />
    </inertial>
    <visual>
      <origin
        xyz="0 0 0"
        rpy="0 0 0" />
      <geometry>
        <mesh
          filename="package://stretch_description/meshes/link_gripper_finger_left.STL" scale="${scale_finger_length} 1.0 1.0"/>
      </geometry>
      <material
        name="">
        <color
          rgba="0.792156862745098 0.819607843137255 0.933333333333333 1" />
      </material>
    </visual>
    <collision>
      <origin
        xyz="0 0 0"
        rpy="0 0 0" />
      <geometry>
        <mesh
          filename="package://stretch_description/meshes/link_gripper_finger_left.STL" scale="${scale_finger_length} 1.0 1.0"/>
      </geometry>
    </collision>
  </link>
  
  <joint
    name="joint_gripper_finger_left"
    type="revolute">
    <origin
      xyz="-0.047231 -0.010151 -0.04679"
      rpy="2.1762E-15 0.5236 3.1416" />
    <parent
      link="link_gripper" />
    <child
      link="link_gripper_finger_left" />
    <axis
      xyz="0 0 1" />
    <limit effort="100" lower="-0.6" upper="0.6" velocity="1.0"/>
  </joint>
  
  <link
    name="link_gripper_fingertip_left">
    <inertial>
      <origin
        xyz="-3.16381381648689E-08 -2.91408530639359E-09 0.00812579670381812"
        rpy="0 0 0" />
      <mass
        value="0.00382159917455729" />
      <inertia
        ixx="0.001"
        ixy="0"
        ixz="0"
        iyy="0.001"
        iyz="0"
        izz="0.001" />
    </inertial>
    <visual>
      <origin
        xyz="0 0 0"
        rpy="0 0 0" />
      <geometry>
        <mesh
          filename="package://stretch_description/meshes/link_gripper_fingertip_left.STL" />
      </geometry>
      <material
        name="">
        <color
          rgba="0.250980392156863 0.250980392156863 0.250980392156863 1" />
      </material>
    </visual>
    <collision>
      <origin
        xyz="0 0 0"
        rpy="0 0 0" />
      <geometry>
        <mesh
          filename="package://stretch_description/meshes/link_gripper_fingertip_left.STL" />
      </geometry>
    </collision>
  </link>
  
  <joint
    name="joint_gripper_fingertip_left"
    type="fixed">
    <origin
      xyz="${scale_finger_length * 0.19011} 0.014912 0"
      rpy="-1.5708 -4.774E-15 -2.5545" />
    <parent
      link="link_gripper_finger_left" />
    <child
      link="link_gripper_fingertip_left" />
    <axis
      xyz="0 0 0" />
  </joint>
  
  <link
    name="link_gripper_finger_right">
    <inertial>
      <origin
        xyz="-0.0945047483510099 -0.0124301080924345 0"
        rpy="0 0 0" />
      <mass
        value="0.0476207785199481" />
      <inertia
        ixx="0.001"
        ixy="0"
        ixz="0"
        iyy="0.001"
        iyz="0"
        izz="0.001" />
    </inertial>
    <visual>
      <origin
        xyz="0 0 0"
        rpy="0 0 0" />
      <geometry>
        <mesh
          filename="package://stretch_description/meshes/link_gripper_finger_right.STL" scale="${scale_finger_length} 1.0 1.0"/>
      </geometry>
      <material
        name="">
        <color
          rgba="0.792156862745098 0.819607843137255 0.933333333333333 1" />
      </material>
    </visual>
    <collision>
      <origin
        xyz="0 0 0"
        rpy="0 0 0" />
      <geometry>
        <mesh
          filename="package://stretch_description/meshes/link_gripper_finger_right.STL" scale="${scale_finger_length} 1.0 1.0"/>
      </geometry>
    </collision>
  </link>
  
  <joint
    name="joint_gripper_finger_right"
    type="revolute">
    <origin
      xyz="-0.047231 0.010049 -0.04679"
      rpy="3.1416 -0.5236 1.2943E-15" />
    <parent
      link="link_gripper" />
    <child
      link="link_gripper_finger_right" />
    <axis
      xyz="0 0 1" />
    <limit effort="100" lower="-0.6" upper="0.6" velocity="1.0"/>
  </joint>
  
  <link
    name="link_gripper_fingertip_right">
    <inertial>
      <origin
        xyz="2.59386303963494E-08 6.70949018566347E-09 0.00812579516130402"
        rpy="0 0 0" />
      <mass
        value="0.00382160037319545" />
      <inertia
        ixx="0.001"
        ixy="0"
        ixz="0"
        iyy="0.001"
        iyz="0"
        izz="0.001" />
    </inertial>
    <visual>
      <origin
        xyz="0 0 0"
        rpy="0 0 0" />
      <geometry>
        <mesh
          filename="package://stretch_description/meshes/link_gripper_fingertip_right.STL" />
      </geometry>
      <material
        name="">
        <color
          rgba="0.250980392156863 0.250980392156863 0.250980392156863 1" />
      </material>
    </visual>
    <collision>
      <origin
        xyz="0 0 0"
        rpy="0 0 0" />
      <geometry>
        <mesh
          filename="package://stretch_description/meshes/link_gripper_fingertip_right.STL" />
      </geometry>
    </collision>
  </link>
  
  <joint
    name="joint_gripper_fingertip_right"
    type="fixed">
    <origin
      xyz="${scale_finger_length * -0.19011} -0.014912 0"
      rpy="-1.5708 -2.0539E-15 0.58705" />
    <parent
      link="link_gripper_finger_right" />
    <child
      link="link_gripper_fingertip_right" />
    <axis
      xyz="0 0 0" />
  </joint>

  
  <link
      name="link_grasp_center">
  </link>
  
  <joint
    name="joint_grasp_center"
    type="fixed">
    <origin
      xyz="-0.205478 0 -0.138154"
      rpy="0 0 3.141579" />
    <parent
      link="link_gripper" />
    <child
      link="link_grasp_center" />
  </joint>
  
</robot>