Hi, I'm getting more and more lost trying to implement the move_arm properly, so sorry in advance if my questions are a bit messy. At first I duplicated the move_arm package and completely modified it for my arm. It kind of worked but it didn't seem like a good solution, as move_arm seems to be very generic: The only command output from this package seem to be a pr2_controllers_msgs::JointTrajectoryAction. So if I implement my own * joint_trajectory_action_controller.cpp*, which is a SimpleActionServer, to move my arm, will it work? To use the generic move_arm package, I'm still missing a motion_planner (I think). Should I try to use the ompl_planner or the ik_constrained_planner or something else? When I'm trying to compile the ik_constrained_planner it's failing to build due to the generic_kinematics overlay (from https://code.ros.org/svn/wg-ros-pkg/stacks/kinematics/branches/generic_kinematics). Hope you can give me some hints on what I am doing wrong. Cheers, Ugo -- Ugo Cupcic | Shadow Robot Company | ugo@shadowrobot.com Software Engineer | 251 Liverpool Road | need a Hand? | London N1 1LX | +44 20 7700 2487 http://www.shadowrobot.com/hand/ @shadowrobot