The articulations of robot arm in isaac sim are not interlocked

Isaac Sim Version

[v]4.5.0
4.2.0
4.1.0
4.0.0
4.5.0
2023.1.1
2023.1.0-hotfix.1
Other (please specify):

Operating System

[v] Ubuntu 22.04
Ubuntu 20.04
Windows 11
Windows 10
Other (please specify):

GPU Information

  • Model: NVIDIA GeForce RTX 4070
  • Driver Version: NVIDIA-SMI 535.183.01

Topic Description

Detailed Description

when I move the end articulation of the robot arm, it detached from the robot arm, they are not linked.
please look at the picture below:

Steps to Reproduce

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Error Messages

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Additional Information

What I’ve Tried

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Related Issues

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Additional Context

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How did you got your robot model imported? Are all the joints setup properly?

Do you mean after I open the usd document from the content window, I need to add the articulations from action graph window, and link the articulations and the joints of the robotic arm?

I am not sure what steps you have taken to setup your robot. Maybe this doc will help you Robot Setup — Isaac Sim Documentation