Abstract
To increase the efficiency of 3D modeling, the sophisticate CAD users must memorize different hotkey combinations for different softwares. Hence, the challenge of the research is to find out how to create a more intuitive and natural "rotate" and "zoom in/out" command in 3D CAD modeling. The research creates a "BCI embedded CAD" system prototype via EPOC+ with the connection between 3D studio Max and brainwaves. Through the system, the user can easily control the 3D viewport (zoom in/out) in 3D CAD environment through "thinking the commends". In the future study, the "BCI embedded CAD" can be modified as a cross-platform 3D CAD interface that enables users to use imagination to control 3D modeling among different softwares (Maya, 3D studio Max, and Rihno) rather than traditional text-based commands or graphical icons.