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Questions tagged [arm-controller]

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Could NOT find combined_robot_hw (missing: combined_robot_hw_DIR)

Hi, I tried cloning the repository following the instruction on the master branch (https://github.com/xArm-Developer/xarm_ros), however while doing catkin_make I am getting the following error, please ...
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Waiting for dof_fit/follow_joint_trajectory to come up; Action client not connected: dof_fit/follow_joint_trajectory

hi, when i try to connect moveit to my gazebo simulation i get the following error: ...
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Difference between arm_controller and joint_group_position_controller

Hi Can anyone explain to me what arm_controller and joint_group_position_controller in universal robots work? And what is their difference? I get that they are both used for controlling the joints (by ...
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Controller Manger under namespace can not launch for Gazebo World

I am trying to simulate multiple universal robots arm on a mobile robot. To achieve this first I am trying to get the single arm under one namespace(center). I am to run the simulation and the robot ...
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How to emulate a MoveJ, or MoveL movement using ROS?

Hi all, I am currently using a UR5 in simulation and would like to know if there is a way to emulate the way that the UR5 moves from one joint target to another joint target. The movement/trajectory I ...
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How to move a ur3 robot arm by using actions?

Dear community, I'm absolutely new to ROS, so please excuse my technically perhaps not always quite correct expressions. I'm running ROS Kinetic on Ubuntu 16.04 LTS and cloned the "universal ...
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MoveIt - unable to identify any set of controllers

Hi Everyone! Actually i `m working with MoveIt! To start, I have watched this tutorial: https://www.youtube.com/watch?v=j6bBxfD_bYs i did the same, i can see my robot in rviz (Kuka kr150 3100 prime), ...
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arm_controller/joint_trajectory topics not being displayed

Hey! For my GSoC 2018 project, I had previously attached a Kinect sensor to the UR5 robot, generated MoveIt! Config packages for them and tested it on RViz. I was able to spawn the robot with the ...
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ROS package for 4-DOF Arm

I am looking at making my own 4 DOF arm. I see that there was a package "move_arm" that handled motion planning and servo control for an arm, that was made for ROS Groovy. Would there be any ...
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Cannot create trajectory from message. It does not contain the expected joints

Command I run in terminal: ...
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How do I control lwa arm using geomagic touch?

Hi, I have already made URDF model of the lwa arm and its working in gazebo using ros_control. Now I need to control it using geomagic touch haptic device. How should I proceed now ? I know I have to ...
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How to handle "Schunk LWA4P joint angle's origin changes on Robot On/OFF"?

I tried a pick and place application developed in ROS with Schunk LWA4P robotic arm. Initially it worked fine completely. Even when I shut down the robot at positions apart from home (all angles 0 ...
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Integrate actual robot into moveit(other way than ros_control?)

hello sir, as a beginner, i just completed tutorials and found out the solution pretty near to it. but however, before proceeding, i think there must be another simpler way to do it....and here is my ...
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youbot hello world example arm not moving

I have ROS Hydro. I installed the ROS wrapper for youbot, and when I run the hello world example, the base moves but the arm doesn't. I am trying to simulate it in gazebo. I did: roslaunch ...
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Turtlebot arm on Gazebo: lets fall all grasped objects

Hi all, I have managed to fully simulate the turtlebot arm on Gazebo (ROS indigo + Gazebo 2.2.3), but when I try to run the block manipulation demo, the robot can grasp the blocks but then let them ...
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relax a subset of PR2 controllers

After bringing up a PR2 robot, the controllers are all fixed. I wonder is there a way that I can relax one arm and have other controllers still fixed. Anyone who knows how to do this? Thanks a lot! ...
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MoveIt fails to control arm, no arm_controller action client

Hi, I am using the hydro-devel branch of the universal_robot package to attempt to control a UR-5. I start move_group and moveit_rviz and rviz loads properly and displays the correct current state of ...
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How to create a ros-dynamixel controller?

Hi, I am created an robotic 7-DOF arm using Robotis dynamixel servos. How can I able to control dynamixel servos from ROS. I am not find full documentation of it. Can any one help me. Thanks in ...
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