ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question
0

Robot arm control with target velocity

asked 2021-06-22 03:46:29 -0500

Andreas Ziegler gravatar image

Hi MoveIt/ROS community

I'm working on a new project where I need to control a robot arm. In contrast to most (industrial) robot arm control applications, the target velocity of the end effector is crucial. The only thing I could find in the MoveIt documentation is this. Could someone tell me if it is possible to control the end effector velocity with MoveIt and if so, point me towards a tutorial, guide, etc.

Thanks a lot in advance Andreas

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted
0

answered 2021-06-22 23:58:46 -0500

fvd gravatar image

The easiest way to do this in MoveIt might be the Pilz industrial motion planner, which ramps up to a cartesian velocity where possible. This doesn't guarantee a velocity, but after you obtained your plan/trajectory, you can check the velocity of your end effector link manually.

The trajectory is returned by the MoveGroupInterface's plan function. You can evaluate the forward kinematics by calling the RobotState's getGlobalLinkTransform function as described here.

Add the frame of your end effector to your robot's URDF and use setEndEffectorLink to make the Pilz planner consider its velocity.

edit flag offensive delete link more

Question Tools

2 followers

Stats

Asked: 2021-06-22 03:46:29 -0500

Seen: 224 times

Last updated: Jun 22 '21