Open MrDadaGuy opened 5 years ago
This may have to do with the fact that the moments of inertia in the URDF's are not accurate and throwing off Gazebo. The physics really have to be accurate for it to work in Gazebo, since it's a physics emulator, as opposed to just a visualization tool like RVIZ.
One solution would be to open the moveo model in a CAD program like SolidWorks that provides accurate moments for each link, and put those correct values into the URDF.
this urdf works for me. I have changed the inertias. But the control is not working. I ama working on it.
<?xml version='1.0'?> <robot name="moveo_robot" xmlns:xacro="http://www.ros.org/wiki/xacro">
<link name="base_link">
<collision>
<origin
xyz="0 0 .13"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/base_link_col.STL" />
</geometry>
</collision>
<inertial>
<origin
xyz="0.034155 -0.20591 -0.049641"
rpy="0 0 0" />
<mass
value="8.0643" />
<!--inertia
ixx="0.11291"
ixy="0.00066071"
ixz="-0.00030472"
iyy="0.089946"
iyz="0.011461"
izz="0.19187" /-->
<inertia
ixx="0.446"
ixy="0.0"
ixz="0.0"
iyy="0.446"
iyz="0.0"
izz="0.853" />
</inertial>
<link name="odom">
<joint name="odom_joint" type="fixed"> <origin xyz="0 0 0" rpy="0 0 0" /> <parent link="odom" /> <child link="base_link" />
<link name="Link_1">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Link_1.STL" />
</geometry>
<material
name="">
<color
rgba="0.75294 0.75294 0.75294 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Link_1_col.STL" />
</geometry>
</collision>
<joint name="Joint_1" type="revolute"> <origin xyz="0 -0.2425 .13" rpy="1.5708 9.5417E-17 2.7766" /> <parent link="base_link" /> <child link="Link_1" /> <axis xyz="0 1 0" />
<limit
lower="-1.5707"
upper="1.5707"
effort="5"
velocity="1" />
<link name="Link_2">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Link_2.STL" />
</geometry>
<material
name="">
<color
rgba="0.75294 0.75294 0.75294 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Link_2_col.STL" />
</geometry>
</collision>
<joint name="Joint_2" type="revolute"> <origin xyz="0 0.18264 0" rpy="-3.1416 0.95134 1.5708" /> <parent link="Link_1" /> <child link="Link_2" /> <axis xyz="0 -1 0" />
<limit
lower="-1.5707"
upper="1.5707"
effort="5"
velocity="1" />
<link name="Link_3">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Link_3.STL" />
</geometry>
<material
name="">
<color
rgba="0.75294 0.75294 0.75294 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Link_3_col.STL" />
</geometry>
</collision>
<joint name="Joint_3" type="revolute"> <origin xyz="0 0 -0.22112" rpy="-3.1416 0.98126 -3.1416" /> <parent link="Link_2" /> <child link="Link_3" /> <axis xyz="0 -1 0" />
<limit
lower="-1.5707"
upper="1.5707"
effort="5"
velocity="1" />
<link name="Link_4">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Link_4.STL" />
</geometry>
<material
name="">
<color
rgba="0.29412 0.29412 0.29412 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Link_4_col.STL" />
</geometry>
</collision>
<joint name="Joint_4" type="revolute"> <origin xyz="0.16988 -0.00099213 0" rpy="3.1416 -1.2279 1.5708" /> <parent link="Link_3" /> <child link="Link_4" /> <axis xyz="0.010353 -0.99993 -0.0059382" />
<limit
lower="-1.5707"
upper="1.5707"
effort="5"
velocity="1" />
<link name="Link_5">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Link_5.STL" />
</geometry>
<material
name="">
<color
rgba="0.79216 0.81961 0.93333 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Link_5_col.STL" />
</geometry>
</collision>
<joint name="Joint_5" type="revolute"> <origin xyz="-0.0021346 0.053041 0.0016936" rpy="-1.5639 -0.091135 -0.00062919" /> <parent link="Link_4" /> <child link="Link_5" /> <axis xyz="0 1 0" />
<limit
lower="-1.5707"
upper="1.5707"
effort="5"
velocity="1" />
<link name="Gripper_Servo_Gear">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Gripper_Servo_Gear.STL" />
</geometry>
<material
name="">
<color
rgba="0.9098 0.44314 0.031373 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Gripper_Servo_Gear_col.STL" />
</geometry>
</collision>
<joint name="Gripper_Servo_Gear_Joint" type="revolute"> <origin xyz="-0.05013 0.01413 0.041516" rpy="0.9321 0.032705 -1.5268" /> <parent link="Link_5" /> <child link="Gripper_Servo_Gear" /> <axis xyz="0 1 0" />
<limit
lower="0"
upper="1.5707"
effort="5"
velocity="1" />
<link name="Tip_Gripper_Servo">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Tip_Gripper_Servo.STL" />
</geometry>
<material
name="">
<color
rgba="0.6 1 0.27843 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Tip_Gripper_Servo_col.STL" />
</geometry>
</collision>
<joint name="Tip_Gripper_Servo_Joint" type="continuous"> <origin xyz="-0.039906 -0.004 -0.0027473" rpy="-3.1416 -1.5569 -2.0392E-12" /> <parent link="Gripper_Servo_Gear" /> <child link="Tip_Gripper_Servo" /> <axis xyz="0 1 0" />
<limit
lower="0"
upper="1.3"
effort="5"
velocity="1" />
<mimic joint="Gripper_Servo_Gear_Joint" multiplier="1" offset="0"/>
<link name="Gripper_Idol_Gear">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Gripper_Idol_Gear.STL" />
</geometry>
<material
name="">
<color
rgba="0.058824 0.64706 1 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Gripper_Idol_Gear_col.STL" />
</geometry>
</collision>
<joint name="Gripper_Idol_Gear_Joint" type="revolute"> <origin xyz="-0.052696 -0.01387 0.038065" rpy="2.2091 -0.040996 1.626" /> <parent link="Link_5" /> <child link="Gripper_Idol_Gear" /> <axis xyz="0 1 0" />
<limit
lower="-1.5707"
upper="0"
effort="5"
velocity="1" />
<link name="Tip_Gripper_Idol">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Tip_Gripper_Idol.STL" />
</geometry>
<material
name="">
<color
rgba="0.79216 0.81961 0.93333 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Tip_Gripper_Idol_col.STL" />
</geometry>
</collision>
<joint name="Tip_Gripper_Idol_Joint" type="revolute"> <origin xyz="-0.039906 -0.000125 -0.0027473" rpy="3.1416 0.5236 3.1416" /> <parent link="Gripper_Idol_Gear" /> <child link="Tip_Gripper_Idol" /> <axis xyz="0 1 0" />
<limit
lower="-1.5"
upper="0"
effort="5"
velocity="1" />
<mimic joint="Gripper_Idol_Gear_Joint" multiplier="-1" offset="0"/>
<link name="Pivot_Arm_Gripper_Servo">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Pivot_Arm_Gripper_Servo.STL" />
</geometry>
<material
name="">
<color
rgba="0.79216 0.81961 0.93333 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Pivot_Arm_Gripper_Servo_col.STL" />
</geometry>
</collision>
<joint name="Pivot_Arm_Gripper_Servo_Joint" type="revolute"> <origin xyz="-0.068745 0.00713 0.05" rpy="0.93142 -0.0083007 -1.582" /> <parent link="Link_5" /> <child link="Pivot_Arm_Gripper_Servo" /> <axis xyz="0 1 0" />
<limit
lower="-1.5707"
upper="1.5707"
effort="5"
velocity="1" />
<mimic joint="Gripper_Servo_Gear_Joint" multiplier="1" offset="0"/>
<link name="Pivot_Arm_Gripper_Idol">
<visual>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Pivot_Arm_Gripper_Idol.STL" />
</geometry>
<material
name="">
<color
rgba="0.79216 0.81961 0.93333 1" />
</material>
</visual>
<collision>
<origin
xyz="0 0 0"
rpy="0 0 0" />
<geometry>
<mesh
filename="package://moveo_urdf/meshes/Pivot_Arm_Gripper_Idol_col.STL" />
</geometry>
</collision>
<joint name="Pivot_Arm_Gripper_Idol_Joint" type="revolute"> <origin xyz="-0.06867 -0.00687 0.0501" rpy="0.93138 1.7645E-12 -1.5708" /> <parent link="Link_5" /> <child link="Pivot_Arm_Gripper_Idol" /> <axis xyz="0 1 0" />
<limit
lower="-1.5707"
upper="1.5707"
effort="5"
velocity="1" />
<mimic joint="Gripper_Idol_Gear_Joint" multiplier="1" offset="0"/>
I wasn't able to get a gazebo render of the moveo, so I used moveit setup assistant to create a new moveit config directory. This did create a demo_gazebo.launch file and give me an updated URDF containing gazebo meta data. When I bring up rviz it looks good, but in gazebo all of the pieces are jumbled in a pile, not linked properly. Any thoughts? Thanks!