Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Gripper fingers colliding with grasped object [possible solution] #106

Open
Au3f opened this issue Apr 29, 2022 · 0 comments
Open

Gripper fingers colliding with grasped object [possible solution] #106

Au3f opened this issue Apr 29, 2022 · 0 comments

Comments

@Au3f
Copy link

Au3f commented Apr 29, 2022

The Problem mentioned in two_finger_grasp_generator.cpp at line 389 "There is a bug with face grasps allowing the grasp generator to generate grasps where the gripper fingers are in collision with the object being grasped" seems to be caused by an faulty configuration in panda_grasp_data.yaml

The provided configurations are not consistent and result in collisions:

pregrasp_posture: [ 0.04 ]  # open position
grasp_posture: [ 0.0 ]      # close position
joints: [ 'panda_finger_joint1' ]
max_finger_width: 0.085
min_finger_width: 0.06

When max_finger_width matches the pregrasp_posture, there are no more collisions in my case:

pregrasp_posture: [ 0.04 ]  # open position
grasp_posture: [ 0.02 ]      # close position
joints: [ 'panda_finger_joint1' ]
max_finger_width: 0.08
min_finger_width: 0.04
@Au3f Au3f changed the title Gripper fingers colliding with the grasped object [possible solution] Gripper fingers colliding with grasped object [possible solution] Apr 30, 2022
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

1 participant