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2020-09-05 19:17:40 -0500 edited question error with robot model

How to in instantiate Robot_State Class? Can anyone Plz help me with this , its keep saying "no matching function for c

2020-09-05 19:16:49 -0500 edited question error with robot model

How to in instantiate Robot_State Class? Can anyone Plz help me with this , its keep saying "no matching function for c

2020-09-05 17:12:04 -0500 asked a question error with robot model

How to in instantiate Robot_State Class? This may be the stupid question but i am stuck here . moveit::core::RobotStat

2020-08-31 17:22:23 -0500 commented answer MoveIt moveit::core::RobotModel::RobotModel

@ahendrix Sir can you suggest me any tutorial where i can learn how to interpreter c++ documantation

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2020-08-24 18:14:31 -0500 edited question what is use of gravity_vector in order to get requred torque in moveit?

what is use of gravity_vector in order to get requred torque in moveit? I am following this http://docs.ros.org/melodic

2020-08-24 18:14:17 -0500 edited question what is use of gravity_vector in order to get requred torque in moveit?

what is use of gravity_vector in order to get requred torque in moveit? I am following this http://docs.ros.org/melodic

2020-08-24 18:13:26 -0500 asked a question what is use of gravity_vector in order to get requred torque in moveit?

what is use of gravity_vector in order to get requred torque in moveit? I am following this http://docs.ros.org/melodic

2020-08-24 18:13:24 -0500 asked a question what is use of gravity_vector in order to get requred torque in moveit?

what is use of gravity_vector in order to get requred torque in moveit? I am following this http://docs.ros.org/melodic

2020-08-24 18:06:54 -0500 commented question Dynamics of robotic manipulator?

thanks for the response sir sir ,is there any tutorial that i can follow?

2020-08-22 15:02:53 -0500 commented answer What is the difference between pose goal ,joint goal, and space joint goal.

Thank you sir. . Now its Crystal clear to me. . Thanks a lot

2020-08-22 15:01:45 -0500 marked best answer What is the difference between pose goal ,joint goal, and space joint goal.

I was following Moveit tutorials ,

i am confused about these 3 terms , plz let me know.

ubantu 18.04 3.28.2 , ROS Melodic.

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2020-08-21 18:56:02 -0500 asked a question Dynamics of robotic manipulator?

Dynamics of robotic manipulator? Is there any way in ros by which we can calculate the joint torque required to lift up

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2020-08-18 18:28:57 -0500 commented answer What is the difference between pose goal ,joint goal, and space joint goal.

Thank You for the response sir, so in pose goal approach we provide XYZRPY and moveit will do rest of the job, but in jo

2020-08-18 16:58:44 -0500 asked a question What is the difference between joint goal ,space goal and pose goal?

What is the difference between joint goal ,space goal and pose goal? I was following Moveit tutorial from their official

2020-08-18 16:54:11 -0500 asked a question What is the difference between pose goal ,joint goal, and space joint goal.

What is the difference between pose goal ,joint goal, and space joint goal. I was following Moveit tutorials , i am con

2020-07-20 17:50:22 -0500 answered a question Unknown Frame error while running object adding node in moveit.

I have figured it out, frame id should be there. cylinder.header.frame_id ="Your Frame"

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2020-07-20 16:29:30 -0500 asked a question Unknown Frame error while running object adding node in moveit.

Unknown Frame error while running object adding node in moveit. I am running demo.launch (/move_group/fake_controller_jo

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2020-07-09 19:09:57 -0500 edited question Unable connect moveit with gazebo,Moveit interface failed to open

Unable connect moveit with gazebo,Moveit interface failed to open I am trying to connect moveit to gazebo by following h

2020-07-09 18:17:39 -0500 edited question Unable to load move_group while connecting moveit to gazebo.

Unable to load move_group while connecting moveit to gazebo. Tutorial i am following: https://www.youtube.com/watch?v=j6

2020-07-09 18:16:48 -0500 edited question Unable to load move_group while connecting moveit to gazebo.

Unable to load move_group while connecting moveit to gazebo. Tutorial i am following: https://www.youtube.com/watch?v=j6

2020-07-09 18:16:09 -0500 edited question Unable to load move_group while connecting moveit to gazebo.

Unable to load move_group while connecting moveit to gazebo. Tutorial i am following: https://www.youtube.com/watch?v=j6

2020-07-09 18:05:14 -0500 asked a question Unable to load move_group while connecting moveit to gazebo.

Unable to load move_group while connecting moveit to gazebo. Tutorial i am following: https://www.youtube.com/watch?v=j6

2020-07-09 17:56:01 -0500 asked a question Unable connect moveit with gazebo,Moveit interface failed to open

Unable connect moveit with gazebo,Moveit interface failed to open I am trying to connect moveit to gazebo by following h

2020-05-05 11:51:48 -0500 marked best answer I made a 6-DOF arm using xacro , its moving in gazebo but when i use tf_echo , the orientation and position of a frame does not change overtime.

when arm moves in gazebo the orientation and position of a frame in a link should change over time.

but when i use rosrun tf tf_echo [frame1] [frame2] the position and orientation remain unchanged.

please help me out with this.

my model moves in gazebo but not in rviz..

thanks in advance

Here is my launch file

<?xml version="1.0"?>
<launch>
<group ns="/arm">
<param name="robot_description" command="$(find xacro)/xacro $(find robo_arm)/urdf/robo_dis.xacro"/>
    <arg name="x" default="0"/>
    <arg name="y" default="0"/>
    <arg name="z" default="0.5"/>

      <node name="mybot" pkg="gazebo_ros" type="spawn_model" output="screen"
          args="-urdf -param robot_description -model arm -x $(arg x) -y $(arg y) -z $(arg z)" />
     <rosparam command="load" file="$(find robo_arm)/config/joints.yaml" />
     <node name="controller_spawner" pkg="controller_manager" type="spawner"
            respawn="false" output="screen" ns="/arm"
            args="--namespace=/arm
            joint_state_controller
            joint1_position_controller
            joint2_position_controller
            joint3_position_controller
            joint4_position_controller
            --timeout 60">
     </node>
   <node name="joint_state_publisher" pkg="joint_state_publisher" type="joint_state_publisher">
  </node>
  <!-- Combine joint values -->
  <node name="robot_state_publisher" pkg="robot_state_publisher" type="robot_state_publisher"/>

</group>

Topic List

/arm/joint1_position_controller/command
/arm/joint1_position_controller/pid/parameter_descriptions
/arm/joint1_position_controller/pid/parameter_updates
/arm/joint1_position_controller/state
/arm/joint2_position_controller/command
/arm/joint2_position_controller/pid/parameter_descriptions
/arm/joint2_position_controller/pid/parameter_updates
/arm/joint2_position_controller/state
/arm/joint3_position_controller/command
/arm/joint3_position_controller/pid/parameter_descriptions
/arm/joint3_position_controller/pid/parameter_updates
/arm/joint3_position_controller/state
/arm/joint4_position_controller/command
/arm/joint4_position_controller/pid/parameter_descriptions
/arm/joint4_position_controller/pid/parameter_updates
/arm/joint4_position_controller/state
/arm/joint_states 
/clock
/gazebo/link_states
/gazebo/model_states
/gazebo/parameter_descriptions
/gazebo/parameter_updates
/gazebo/set_link_state
/gazebo/set_model_state
/rosout
/rosout_agg 
/tf
/tf_static
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2020-05-05 11:50:30 -0500 commented question ERROR: cannot launch node of type [name of node]

try sourcing your catkin ws by source devel/setup.bash

2020-05-04 13:20:40 -0500 commented question I made a 6-DOF arm using xacro , its moving in gazebo but when i use tf_echo , the orientation and position of a frame does not change overtime.

Thanks a lot Sir, by removing node joint_state_publisher i am able to get desired results. thanks a lot

2020-05-04 12:57:05 -0500 commented question I made a 6-DOF arm using xacro , its moving in gazebo but when i use tf_echo , the orientation and position of a frame does not change overtime.

Thank a lot Sir, by removing node joint_state_publisher i am able to get desired result. thanks a lot

2020-05-04 12:40:32 -0500 commented question I made a 6-DOF arm using xacro , its moving in gazebo but when i use tf_echo , the orientation and position of a frame does not change overtime.

sir, Please check my topic list and launch file...each link broadcasting tf data but when i move the joints by publising

2020-05-04 12:31:57 -0500 commented question I made a 6-DOF arm using xacro , its moving in gazebo but when i use tf_echo , the orientation and position of a frame does not change overtime.

sir, Please check my topic list and launch file...each link broadcasting tf data but when i move the joints data remains

2020-05-04 12:29:03 -0500 edited question I made a 6-DOF arm using xacro , its moving in gazebo but when i use tf_echo , the orientation and position of a frame does not change overtime.

I made a 6-DOF arm using xacro , its moving in gazebo but when i use tf_echo , the orientation and position of a frame d

2020-05-04 12:25:18 -0500 edited question I made a 6-DOF arm using xacro , its moving in gazebo but when i use tf_echo , the orientation and position of a frame does not change overtime.

I made a 6-DOF arm using xacro , its moving in gazebo but when i use tf_echo , the orientation and position of a frame d