Hi, I'm trying to build a KDL representation of our hand. I'd like to define one chain by finger, starting from the wrist (which will then be included in each of those chains), to compute the forward kinematics. My question is what's the best way to do that? I wrote a urdf file containing the model of our hand and parsed it with kdl_parser in my C++ code. It works, but I'm not sure of how to use this kdl tree to define my chains (may be there's a proper way to define the chains in the urdf?). I also wanted to know if there's a tool in ROS that can be used for a simple visualization of my model. May be something like roboview? http://eris.liralab.it/wiki/KDL-simple 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