EEG brain signal in a time series form could be counterintuitive, especially to people outside of expertise. Therefore, we create a simple solution to visualize the signal by mapping the signals to a 3D printed human brain scan. The signals are first processed by a raspberry PiĀ and turn into RGB signal that illuminate the led placed at the corresponding part of the brain. The RGB value reflects the concentration of the activity of the brain eg. inactive part has lower value and active part has higher value, similar to that of heat map. The prototype has won a special prize in 3D Idea Contest. that held in Sendai, 2015.