The combined time for fabrication and assembly takes about one hour for each unit. The framing is fabricated with laser-cutters and hand assembled all together, certain parts like motors and fasteners are sourced from online suppliers. All the hardware movement is controlled through Arduino UNO R3 with a 16 channel PWM servo shield. An Windows Kinect is used to track audience behaviors. The computer algorithm takes data from the Kinect and lighting environment as input and computes the yaw and pitch degrees of the servos. All the algorithm were written in Firefly, a plugin for Grasshopper and Rhino.