ROS package for 3 DOF Revolute-Revolute-Revolute robot arm built from scratch using xacro model. The developed robot is visualized in Rviz, and simulated in Gazebo simulator. MoveIt config package for the robot is developed and interfaced with Gazebo (find the link at the end of the page).
Why do you think that https://github.com/ros-controls/ros_controllers is a good alternative to rrr-arm