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2012-08-20 01:54:39 -0500	asked a question	Start a node from python code - rospy equivalence rosrun - rosgui qt Hallo, I'm writing a plugin for my rosgui in python. At the moment I'm trying to write an "pressed-button" action which starts a rosnode. I's there a python-command equivalent to "`rosrun pkg node`" or the launch-command "<node name="..." pkg="..." type="...">? Unfortunately I couldn't find something in the documentations yet. Thanks for Help.
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2012-08-06 21:52:06 -0500	asked a question	gazebo - revolute joint unresistant against outer forces Hallo, does anybody know how I can make a revolute joint resistant against outer forces? I'm trying to create a manipulator for my urdf Robot-Model. The controllable joint is working fine, but it's deflecting immediately after an outer force worked on it. Edit: Tried it also with an effort of "5000" without any improvement. -----------URDF------------------------- <joint name="XYZ_disk_joint" type="revolute"> <origin xyz=" 0.0 y.y z.z" rpy="0.0 0.0 0.0"/> <parent link="XYZ_corpus" /> <child link="XYZ_disk" /> <axis xyz="0 1 0" /> <limit lower="-1.5708" upper="1.5708" effort="10.0" velocity="3.0" /> <dynamics damping="1.0" friction="1.0"/> </joint> <transmission name="XYZ_revolute_controll" type="pr2_mechanism_model/SimpleTransmission" > <actuator name="XYZ_disk_motor" /> <joint name="XYZ_disk_joint" /> <mechanicalReduction>1.0</mechanicalReduction> </transmission> -----------Controller------------------ `XYZ_servo_controller: type: robot_mechanism_controllers/JointPositionController joint: XYZ_disk_joint pid: p: 1.0 i: 0.0 d: 0.4`