This is the robotic air hockey player built by Jose Julio using 3-D printed parts.
The robot uses a PS3 camera to monitor the action. The camera is mounted above the table and it watched the puck to determine its trajectory. It then moves the paddle to the appropriate position to block and return the puck. It can even anticipate bounces off the wall. And in the event the robot is too good for you, you can always adjust the robot’s speed to dumb-down its acceleration and strategy algorithms.