qt_pi/gazebo_sim/models/qt_pi_laser/model.sdf

<?xml version='1.0'?>
<sdf version='1.5'>
    <model name="qt_pi_laser">
        <link name='chassis'>

            <pose>0 0 0.0525 0 0 0</pose>

            <inertial>
                <mass>10</mass>
                <pose>0 -0.02 -0.03 0 0 0</pose>
            </inertial>

            <collision name='collision'>
                <geometry>
                    <box>
                        <size>.165 .156 .075</size>
                    </box>
                </geometry>
            </collision>

            <visual name='visual'>
                <pose>0 0.015 0.053 0 0 0</pose>
                <geometry>
                    <mesh>
                        <uri>model://qt_pi_chassis/meshes/chassis.dae</uri>
                    </mesh>
                </geometry>
            </visual>

            <collision name='caster_collision'>
                <pose>0 -0.065 -0.045 0 0 0</pose>
                <geometry>
                    <sphere>
                        <radius>.0075</radius>
                    </sphere>
                </geometry>

                <surface>
                    <bounce>
                        <restitution_coefficient>0.0</restitution_coefficient>
                        <threshold>0.01</threshold>
                    </bounce>
                    <contact>
                        <ode>
                            <max_vel>0</max_vel>
                            <min_depth>0.001</min_depth>
                        </ode>
                    </contact>
                    <friction>
                        <ode>
                            <mu>0</mu>
                            <mu2>0</mu2>
                            <slip1>1.0</slip1>
                            <slip2>1.0</slip2>
                        </ode>
                    </friction>
                </surface>
            </collision>

            <visual name='caster_visual'>
                <pose>0 -0.065 -0.04 0 3.141592653589793 0</pose>
                <geometry>
                    <mesh>
                        <uri>model://qt_pi_wheel/meshes/ball_castor.dae</uri>
                        <scale>0.5 0.5 0.5</scale>
                    </mesh>
                </geometry>
            </visual>

        </link>

        <link name="left_wheel">
            <pose>0.106 0.03 0.0227 0 0 -1.5707963267948966</pose>
            <inertial>
                <mass>10</mass>
            </inertial>
            <collision name="collision">
                <surface>
                    <friction>
                        <ode>
                            <mu>10</mu>
                            <mu2>10</mu2>
                        </ode>
                    </friction>
                    <bounce>
                        <restitution_coefficient>0.0</restitution_coefficient>
                        <threshold>0.01</threshold>
                    </bounce>
                    <contact>
                        <ode>
                            <max_vel>0</max_vel>
                            <min_depth>0.001</min_depth>
                        </ode>
                    </contact>
                </surface>
                <geometry>
                    <sphere>
                        <radius>.0227</radius>
                    </sphere>
                </geometry>
            </collision>
            <visual name="visual">
                <pose>0 -0.008 0 0 0 0</pose>
                <geometry>
                    <mesh>
                        <uri>model://qt_pi_wheel/meshes/wheel.dae</uri>
                        <scale>0.056 0.056 0.056</scale>
                    </mesh>
                </geometry>
            </visual>
        </link>

        <link name="right_wheel">
            <pose>-0.106 0.03 0.0227 0 0 -1.5707963267948966</pose>
            <inertial>
                <mass>10</mass>
            </inertial>
            <collision name="collision">

                <surface>
                    <friction>
                        <ode>
                            <mu>10</mu>
                            <mu2>10</mu2>
                        </ode>
                    </friction>
                    <bounce>
                        <restitution_coefficient>0.0</restitution_coefficient>
                        <threshold>0.01</threshold>
                    </bounce>
                    <contact>
                        <ode>
                            <max_vel>0</max_vel>
                            <min_depth>0.001</min_depth>
                        </ode>
                    </contact>
                </surface>

                <geometry>
                    <sphere>
                        <radius>0.0227</radius>
                    </sphere>
                </geometry>
            </collision>
            <visual name="visual">
                <pose>0 0 0 0 0 0</pose>
                <geometry>
                    <mesh>
                        <uri>model://qt_pi_wheel/meshes/wheel.dae</uri>
                        <scale>0.056 0.056 0.056</scale>
                    </mesh>

                </geometry>
            </visual>
        </link>

        <joint type="revolute" name="left_wheel_hinge">
            <pose>0 0 0 0 0 0</pose>
            <child>left_wheel</child>
            <parent>chassis</parent>
            <axis>
                <xyz>0 1 0</xyz>
            </axis>
        </joint>

        <joint type="revolute" name="right_wheel_hinge">
            <pose>0 0 0 0 0 0</pose>
            <child>right_wheel</child>
            <parent>chassis</parent>
            <axis>
                <xyz>0 1 0</xyz>
            </axis>
        </joint>

        <include>
            <uri>model://hokuyo</uri>
            <pose>0 0 0.102 0 0 -1.5707963267948966</pose>
        </include>

        <joint name="hokuyo_joint" type="fixed">
            <child>hokuyo::link</child>
            <parent>chassis</parent>
        </joint>

        <plugin name="differential_drive_controller" filename="libgazebo_ros_diff_drive.so">
            <alwaysOn>true</alwaysOn>
            <updateRate>30</updateRate>
            <leftJoint>left_wheel_hinge</leftJoint>
            <robotNamespace>qt_pi</robotNamespace>
            <rightJoint>right_wheel_hinge</rightJoint>
            <wheelSeparation>0.4</wheelSeparation>
            <wheelDiameter>0.2</wheelDiameter>
            <publishWheelTF>0</publishWheelTF>
            <wheelTorque>5</wheelTorque>
            <commandTopic>cmd_vel</commandTopic>
            <odometryTopic>odom</odometryTopic>
            <robotBaseFrame>base_link</robotBaseFrame>
            <odometryFrame>odom</odometryFrame>
            <publishTf>1</publishTf>
            <publishOdomTF>true</publishOdomTF>
            <rosDebugLevel>1</rosDebugLevel>
            <publishWheelJointState>false</publishWheelJointState>
            <wheelAcceleration>0</wheelAcceleration>
        </plugin>

    </model>
</sdf>