Mastering ROS for Robotics Programming

Creating the robot description for a seven DOF robot manipulator

Now, we can create some complex robots using URDF and xacro. The first robot we are going to deal with is a seven DOF robotic arm, which is a serial link manipulator having multiple serial links. The seven DOF arm is kinematically redundant, which means it has more joints and DOF than required to achieve its goal position and orientation. The advantage of redundant manipulators are, we can have more joint configuration for a particular goal position and orientation. It will improve the flexibility and versatility of the robot movement and can implement effective collision free motion in a robotic workspace.

Let's start creating the seven DOF arm; the final output model of the robot ...