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Wrong closing position of gripper in URDF VS official Robotiq documentation #79

Description

@lesurJ

Hello,

I am encountering an issue where the robotiq_description URDF does not match with the official documentation of the Robotiq company.

From the official documentation we can see the following closed configuration on page 107:

Image

However, when launching the view_gripper.launch.py and closing the gripper, the closed configuration is not the same, as depicted in this screenshot (look at the inner knuckles):

Image

Why is that so?
Could you please explain how i could fix this as i really need the URDF to match the real gripper.

Note:

  • I found this issue while comparing the official Isaac Sim Robotiq 2f140 with your URDF/RViz. The Isaac Sim asset does match with the official documentation of Robotiq.
  • I think this issue comes from the joints definition. In Isaac Sim, the closed configuration uses finger_joint=0.8 while the URDF defines the closed configuration with finger_joint=0.7.

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