# \#urdf **URL:** https://get-help.theconstruct.ai/tag/urdf/33.md [Latest](https://get-help.theconstruct.ai/latest.md) · [Categories](https://get-help.theconstruct.ai/categories.md) · [Tags](https://get-help.theconstruct.ai/tags.md) --- ## [Issues getting meshed and continuous joint parts to show up right in Gazebo](https://get-help.theconstruct.ai/t/issues-getting-meshed-and-continuous-joint-parts-to-show-up-right-in-gazebo/36953)
**Author:** [@mattheartin](https://get-help.theconstruct.ai/u/mattheartin)\ **Replies:** 0\ **Last updated:** [June 30, 2025, 8:54pm UTC](https://get-help.theconstruct.ai/t/issues-getting-meshed-and-continuous-joint-parts-to-show-up-right-in-gazebo/36953 "2025-06-30T20:54:26Z")
First and foremost I know my joint state publisher and robot state publisher are working, as when I call ros2 topic echo on them it prints what it should. However, when I boot gazebo, the links that are coming from a me… --- ## [Problem in spawning URDF file export from solidworks to gazebo with ROS2](https://get-help.theconstruct.ai/t/problem-in-spawning-urdf-file-export-from-solidworks-to-gazebo-with-ros2/28934)
**Author:** [@thinhopop1](https://get-help.theconstruct.ai/u/thinhopop1)\ **Replies:** 0\ **Last updated:** [February 16, 2024, 3:23pm UTC](https://get-help.theconstruct.ai/t/problem-in-spawning-urdf-file-export-from-solidworks-to-gazebo-with-ros2/28934 "2024-02-16T15:23:05Z")
Hello, I have a problem in spawning the robot which is made with solidworks\_urdf\_exporter. The robot is able to view in RVIZ but gazebo was crash when i spawned it. I dont know is that the problem with the urdf file or g… --- ## [Call xacro macros using parameters](https://get-help.theconstruct.ai/t/call-xacro-macros-using-parameters/26286)
**Author:** [@RosieRobot](https://get-help.theconstruct.ai/u/RosieRobot)\ **Replies:** 3\ **Last updated:** [September 14, 2023, 2:00pm UTC](https://get-help.theconstruct.ai/t/call-xacro-macros-using-parameters/26286 "2023-09-14T14:00:54Z")
Is it possible to call a macro using other xacro parameters? I have a file called inertial\_properties.xacro where I have inertial properties defined in a macro for each link. When I call the macro using \ **Author:** [@eyaleyal](https://get-help.theconstruct.ai/u/eyaleyal)\ **Replies:** 1\ **Last updated:** [October 27, 2022, 8:40am UTC](https://get-help.theconstruct.ai/t/spawn-a-urdf-model-in-gazebo-with-ros2/20117 "2022-10-27T08:40:49Z") I was working on part 2 of the course spawn a URDF model in Gazebo with ROS2 yesterday, with a lot of efforts due to a few mistakes in the filenames and tabbing and some more issues. When i got to the part of controllin… --- ## [Visualization of Robot's workspace(task space) based on the URDF](https://get-help.theconstruct.ai/t/visualization-of-robots-workspace-task-space-based-on-the-urdf/23731)
**Author:** [@mahdijavadi1991](https://get-help.theconstruct.ai/u/mahdijavadi1991)\ **Replies:** 2\ **Last updated:** [April 14, 2023, 5:58am UTC](https://get-help.theconstruct.ai/t/visualization-of-robots-workspace-task-space-based-on-the-urdf/23731 "2023-04-14T05:58:13Z")
Hello, I was wondering if there is any tool/framework that one could use to visualize full workspace of the robot based on it’s urdf. Thank you in advance! --- ## [Multi/ Dual Robot Communication](https://get-help.theconstruct.ai/t/multi-dual-robot-communication/22978)
**Author:** [@RishiM](https://get-help.theconstruct.ai/u/RishiM)\ **Replies:** 13\ **Last updated:** [March 13, 2023, 11:57am UTC](https://get-help.theconstruct.ai/t/multi-dual-robot-communication/22978 "2023-03-13T11:57:47Z")
Hey guys, I am trying to set up dual robot communication between 2 UR5e. I am using Universal\_Robot\_ROS\_Driver with ubuntu 18.04, melodic and ROS1. IT seems like I am only able to run the joints of 1 robot, but not the o… --- ## [Couldnt add robot model and TF in rviz](https://get-help.theconstruct.ai/t/couldnt-add-robot-model-and-tf-in-rviz/18685)
**Author:** [@rosacc387](https://get-help.theconstruct.ai/u/rosacc387)\ **Replies:** 3\ **Last updated:** [August 22, 2022, 7:52am UTC](https://get-help.theconstruct.ai/t/couldnt-add-robot-model-and-tf-in-rviz/18685 "2022-08-22T07:52:56Z")
I have started " URDF for Robot Modeling" course yesterday. In unit 1 while after creating URDF file for mira robot and creating the launch file , I am not able to add the Robot model and TF in rviz. Can anyone please he… --- ## [Gazebo simulation world not loading](https://get-help.theconstruct.ai/t/gazebo-simulation-world-not-loading/16045)
**Author:** [@BadhriROS](https://get-help.theconstruct.ai/u/BadhriROS)\ **Replies:** 4\ **Last updated:** [March 11, 2022, 2:53pm UTC](https://get-help.theconstruct.ai/t/gazebo-simulation-world-not-loading/16045 "2022-03-11T14:53:34Z")
hello there, iam trying to work on ‘line following drone’ using this ROS Developers LIVE Class #86: How to use OpenCV with ROS - YouTube , but instead of using ROS Development Studio, iam using it locally in my PC ROS … --- ## [Difference between using hardware\_interface/VelocityJointInterface and VelocityJointInterface](https://get-help.theconstruct.ai/t/difference-between-using-hardware-interface-velocityjointinterface-and-velocityjointinterface/16038)
**Author:** [@youngyangcs](https://get-help.theconstruct.ai/u/youngyangcs)\ **Replies:** 1\ **Last updated:** [March 10, 2022, 8:20am UTC](https://get-help.theconstruct.ai/t/difference-between-using-hardware-interface-velocityjointinterface-and-velocityjointinterface/16038 "2022-03-10T08:20:25Z")
Hi, all When I’m defining the \ in a urdf file, the example give in the URDF course using \VelocityJointInterface\. While the example in the ROS control document us… --- ## [ROS Basics in 5 Days - Unit 4 Quiz cannot re-submit](https://get-help.theconstruct.ai/t/ros-basics-in-5-days-unit-4-quiz-cannot-re-submit/15363)
**Author:** [@jpalmer](https://get-help.theconstruct.ai/u/jpalmer)\ **Replies:** 5\ **Last updated:** [February 16, 2022, 8:15am UTC](https://get-help.theconstruct.ai/t/ros-basics-in-5-days-unit-4-quiz-cannot-re-submit/15363 "2022-02-16T08:15:33Z")
I am unable to take the Quiz in Unit 4 yet. The Gradebot is giving the following message despite the fact I have never taken this quiz: \*Gradebot Hi there! Here to check that your assessment package works as expected. … --- ## [Bash fails to work in the last two units in URDF course](https://get-help.theconstruct.ai/t/bash-fails-to-work-in-the-last-two-units-in-urdf-course/14581)
**Author:** [@Geniussh](https://get-help.theconstruct.ai/u/Geniussh)\ **Replies:** 3\ **Last updated:** [January 7, 2022, 8:47am UTC](https://get-help.theconstruct.ai/t/bash-fails-to-work-in-the-last-two-units-in-urdf-course/14581 "2022-01-07T08:47:41Z")
Whenever I start my bash terminal I saw the following message: bash: /opt/ros/kinetic/setup.bash: No such file or directory It seems that there’s no setup.bash for the kinetic distro. But there is one for bash in the p… --- ## [URDF's floating joint not working in Gazebo](https://get-help.theconstruct.ai/t/urdfs-floating-joint-not-working-in-gazebo/8864)
**Author:** [@rajaserhal](https://get-help.theconstruct.ai/u/rajaserhal)\ **Replies:** 1\ **Last updated:** [December 10, 2021, 9:03am UTC](https://get-help.theconstruct.ai/t/urdfs-floating-joint-not-working-in-gazebo/8864 "2021-12-10T09:03:26Z")
Hi, I am trying to run a simulation on Gazebo based on a URDF script. I want the robot to move freely in the environment. How do I connect the base-link to the world? Using a floating joint between the base link and… --- ## [How to create a spring between two links](https://get-help.theconstruct.ai/t/how-to-create-a-spring-between-two-links/12801)
**Author:** [@bd16](https://get-help.theconstruct.ai/u/bd16)\ **Replies:** 0\ **Last updated:** [September 27, 2021, 7:55pm UTC](https://get-help.theconstruct.ai/t/how-to-create-a-spring-between-two-links/12801 "2021-09-27T19:55:26Z")
I see that in the dynamics tag for joints you have the friction and damping, but how would one create a spring-like connection between two links? Like what is shown in: PyBullet hopper robot - YouTube. --- ## [SDF Format popularity](https://get-help.theconstruct.ai/t/sdf-format-popularity/12271)
**Author:** [@u1802520](https://get-help.theconstruct.ai/u/u1802520)\ **Replies:** 1\ **Last updated:** [September 1, 2021, 12:17am UTC](https://get-help.theconstruct.ai/t/sdf-format-popularity/12271 "2021-09-01T00:17:38Z")
This is one small question, Why SDF format is not that popular like URDF when creating a new robot model? What do you guys know about it? --- ## [How can I add a tool from STL file](https://get-help.theconstruct.ai/t/how-can-i-add-a-tool-from-stl-file/11295)
**Author:** [@DavidRedrejo](https://get-help.theconstruct.ai/u/DavidRedrejo)\ **Replies:** 1\ **Last updated:** [July 23, 2021, 8:23am UTC](https://get-help.theconstruct.ai/t/how-can-i-add-a-tool-from-stl-file/11295 "2021-07-23T08:23:34Z")
Hi, I’m working in my local computer (ROS Kinetic 1.12.17, Ubuntu 16.04 LTS) with the package of the Robotnik’s RB-Kairos found in your git (Bitbucket). I’m launching the UR10 version. I want to add a tool to the arm, … --- ## [Error in the launch of the URDF model in Rviz, in personal computer](https://get-help.theconstruct.ai/t/error-in-the-launch-of-the-urdf-model-in-rviz-in-personal-computer/11227)
**Author:** [@GENGIS](https://get-help.theconstruct.ai/u/GENGIS)\ **Replies:** 0\ **Last updated:** [July 17, 2021, 6:19pm UTC](https://get-help.theconstruct.ai/t/error-in-the-launch-of-the-urdf-model-in-rviz-in-personal-computer/11227 "2021-07-17T18:19:20Z")
Hello, everyone. I am trying to build a URDF model with my personal ros, but I get an error (image attached) For what is this? These are the two XML files. --- ## [Why doesn't my URDF joints appear for tweaking wihtin RViz](https://get-help.theconstruct.ai/t/why-doesnt-my-urdf-joints-appear-for-tweaking-wihtin-rviz/10911)
**Author:** [@izzatfadzlon](https://get-help.theconstruct.ai/u/izzatfadzlon)\ **Replies:** 2\ **Last updated:** [July 7, 2021, 7:56am UTC](https://get-help.theconstruct.ai/t/why-doesnt-my-urdf-joints-appear-for-tweaking-wihtin-rviz/10911 "2021-07-07T07:56:08Z")
Firstly, i’d like to say that the code runs fine, but the robot does not do what it’s supposed to do. But thats not my question. The question is: Why are the pitch\_joint and yaw\_joint joints in my joint\_state\_publisher … --- ## [Controller\_manager not found](https://get-help.theconstruct.ai/t/controller-manager-not-found/10914)
**Author:** [@WhenOwlsHoot](https://get-help.theconstruct.ai/u/WhenOwlsHoot)\ **Replies:** 1\ **Last updated:** [July 6, 2021, 8:10am UTC](https://get-help.theconstruct.ai/t/controller-manager-not-found/10914 "2021-07-06T08:10:30Z")
Hi, I know that there is a lot of questions asked regarding this topic, but none of them actually solved my issue on this one, or I might have done them wrongly. In my gurdy.urdf file, I have already added the following… --- ## [URDF file doesn't show syntax highlighting](https://get-help.theconstruct.ai/t/urdf-file-doesnt-show-syntax-highlighting/10869)
**Author:** [@izzatfadzlon](https://get-help.theconstruct.ai/u/izzatfadzlon)\ **Replies:** 2\ **Last updated:** [July 1, 2021, 7:57am UTC](https://get-help.theconstruct.ai/t/urdf-file-doesnt-show-syntax-highlighting/10869 "2021-07-01T07:57:29Z")
I have a problem whereby vscode emulator doesn’t show syntax highlighting even though the file name has .urdf included in it. The unusual thing is that the urdf file “mira\_simple.urdf” has syntax highlighting while the c… --- ## [Understanding urdf\_spawn.launch](https://get-help.theconstruct.ai/t/understanding-urdf-spawn-launch/10715)
**Author:** [@WhenOwlsHoot](https://get-help.theconstruct.ai/u/WhenOwlsHoot)\ **Replies:** 1\ **Last updated:** [June 25, 2021, 6:39am UTC](https://get-help.theconstruct.ai/t/understanding-urdf-spawn-launch/10715 "2021-06-25T06:39:34Z")
\ \ \ \ \ \ \ **Author:** [@asinha](https://get-help.theconstruct.ai/u/asinha)\ **Replies:** 3\ **Last updated:** [June 24, 2021, 1:41am UTC](https://get-help.theconstruct.ai/t/openai-ros-fectch-robot-example-in-ros-neotic-not-working/8670 "2021-06-24T01:41:59Z") Hi, I am learning to use openai ROS package using the fect robot example. However I am getting a hard time to make the fetch robot simulation working. I am using ROS noetic. You can find the detailed question by followi… --- ## [Using URDF For Gazebo Exercise U2-1 could not visualize the urdf](https://get-help.theconstruct.ai/t/using-urdf-for-gazebo-exercise-u2-1-could-not-visualize-the-urdf/10588)
**Author:** [@WhenOwlsHoot](https://get-help.theconstruct.ai/u/WhenOwlsHoot)\ **Replies:** 2\ **Last updated:** [June 23, 2021, 5:01am UTC](https://get-help.theconstruct.ai/t/using-urdf-for-gazebo-exercise-u2-1-could-not-visualize-the-urdf/10588 "2021-06-23T05:01:26Z")
I am currently in Chapter 3 in the URDF course. I am facing problems with trying to visualize my robot mira in the rviz for some reason. I tried copy and pasting the solution but the GraphicalTools are completely black … --- ## [Base\_link and roll\_M1\_link not generated in rviz](https://get-help.theconstruct.ai/t/base-link-and-roll-m1-link-not-generated-in-rviz/10522)
**Author:** [@WhenOwlsHoot](https://get-help.theconstruct.ai/u/WhenOwlsHoot)\ **Replies:** 0\ **Last updated:** [June 14, 2021, 2:33am UTC](https://get-help.theconstruct.ai/t/base-link-and-roll-m1-link-not-generated-in-rviz/10522 "2021-06-14T02:33:38Z")
Hi, I kept facing the same problem with this part of the course where if I try to write down the code myself, I was not able to generate the robot. The error that I am receiving is : \[ERROR\] \[1623637554.697606526\]: … --- ## [Cannot spawn Gurdy on Gazebo (quiz)](https://get-help.theconstruct.ai/t/cannot-spawn-gurdy-on-gazebo-quiz/4623)
**Author:** [@jeferrandiz98](https://get-help.theconstruct.ai/u/jeferrandiz98)\ **Replies:** 2\ **Last updated:** [May 2, 2021, 9:32am UTC](https://get-help.theconstruct.ai/t/cannot-spawn-gurdy-on-gazebo-quiz/4623 "2021-05-02T09:32:50Z")
I try to spawn the gurdy urdf model on Gazebo using the methods of the previous unit but the robot does not appear on Gazebo. This is the .launch file I use (spawn\_gurdy.launch): \ … --- ## [Gazebo not visible in URDF course](https://get-help.theconstruct.ai/t/gazebo-not-visible-in-urdf-course/9531)
**Author:** [@mchambliss](https://get-help.theconstruct.ai/u/mchambliss)\ **Replies:** 1\ **Last updated:** [April 20, 2021, 9:02am UTC](https://get-help.theconstruct.ai/t/gazebo-not-visible-in-urdf-course/9531 "2021-04-20T09:02:09Z")
I am attempting to complete the URDF course on The Construct, but unfortunately Gazebo is no longer visible for me. This occured during “Chapter 3 Using URDF For Robots” and is now present throughout any of the course ch… --- ## [How to define odom topic for a robot?](https://get-help.theconstruct.ai/t/how-to-define-odom-topic-for-a-robot/7815)
**Author:** [@m.haghbeigi](https://get-help.theconstruct.ai/u/m.haghbeigi)\ **Replies:** 1\ **Last updated:** [January 25, 2021, 8:42am UTC](https://get-help.theconstruct.ai/t/how-to-define-odom-topic-for-a-robot/7815 "2021-01-25T08:42:27Z")
In the ROS control course, it is explained how to create and set controllers for joints. my question is, how to create an Odom topic for our robot (real and in the Gazebo)? What are the steps? --- ## [URDF Jibo Project won't spawn](https://get-help.theconstruct.ai/t/urdf-jibo-project-wont-spawn/6357)
**Author:** [@joubr13](https://get-help.theconstruct.ai/u/joubr13)\ **Replies:** 2\ **Last updated:** [January 22, 2021, 8:53am UTC](https://get-help.theconstruct.ai/t/urdf-jibo-project-wont-spawn/6357 "2021-01-22T08:53:18Z")
Hi can someone please help me to solve this error? I keep getting it when I try and spawn my Jibo project into Gazebo. I have structured my code to be similar to the code for the gurdy project. The code for the grurdy pr… --- ## [Adding ACTOR model in the rosject](https://get-help.theconstruct.ai/t/adding-actor-model-in-the-rosject/7305)
**Author:** [@varunreddytrml1](https://get-help.theconstruct.ai/u/varunreddytrml1)\ **Replies:** 5\ **Last updated:** [January 8, 2021, 9:20am UTC](https://get-help.theconstruct.ai/t/adding-actor-model-in-the-rosject/7305 "2021-01-08T09:20:29Z")
I am trying to add the actor model in the simulation. So, I edited the world file of the turtlebot that I installed in the environment .In the world file i didn’t make any change except the addition of actor model. I en… --- ## [Large robot URDF not display properly in rviz and gazebo](https://get-help.theconstruct.ai/t/large-robot-urdf-not-display-properly-in-rviz-and-gazebo/7018)
**Author:** [@hank880907](https://get-help.theconstruct.ai/u/hank880907)\ **Replies:** 1\ **Last updated:** [December 21, 2020, 8:40am UTC](https://get-help.theconstruct.ai/t/large-robot-urdf-not-display-properly-in-rviz-and-gazebo/7018 "2020-12-21T08:40:31Z")
Hi there, I was trying to create my robot model in Gazebo. I imported an STL file of my robot from Solidworks. The dimension of the robot is about 1000mm \* 1000mm \* 600mm. It was way too big in RVIZ and gazebo tha… --- ## [Urdf problem with Gazebo](https://get-help.theconstruct.ai/t/urdf-problem-with-gazebo/6624)
**Author:** [@saxosun](https://get-help.theconstruct.ai/u/saxosun)\ **Replies:** 1\ **Last updated:** [December 2, 2020, 8:39am UTC](https://get-help.theconstruct.ai/t/urdf-problem-with-gazebo/6624 "2020-12-02T08:39:36Z")
Hi, I tried to build a three-wheeled forklift from scratch. I generated stl with a cad and file.dae with blender. I assigned the colors to the right wheel via Blender itself. I was able to view in Rviz as the image show… [Next page](https://get-help.theconstruct.ai/tag/urdf/33.md?match_all_tags=true&page=1&tags%5B%5D=urdf)