Hi, Gripper movers in and out.I found that following two commands close the gripper inwards: $rostopic pub /gripper_control p2os_driver/GripperState '{grip: {state: 2, dir: -1, inner_beam: False, outer_beam: False, left_contact: False, right_contact: False}, lift: {state: 0, dir: 0, position: 0.0 }}' $rostopic pub /gripper_control p2os_driver/GripperState '{grip: {state: 0, dir: 0, inner_beam: False, outer_beam: False, left_contact: False, right_contact: False}, lift: {state: 2, dir: -1, position: 0.0 }}' and following two commands open the gripper outwards: $rostopic pub /gripper_control p2os_driver/GripperState '{grip: {state: 1, dir: 1, inner_beam: False, outer_beam: False, left_contact: False, right_contact: False}, lift: {state: 0, dir: 0, position: 0.0 }}' $rostopic pub /gripper_control p2os_driver/GripperState '{grip: {state: 0, dir: 0, inner_beam: False, outer_beam: False, left_contact: False, right_contact: False}, lift: {state: 1, dir: 1, position: 0.0 }}' But to Move the Gripper Up and Down I tried different arguments on lift options but it does not function. How to move Gripper Up and Down? Or any Tutorial about these arguments of Gripper? Thanks in advance. -- View this message in context: http://ros-users.122217.n3.nabble.com/Poineer-Gipper-tp1780092p1793330.html Sent from the ROS-Users mailing list archive at Nabble.com.