Compact, Handheld Dosa Bot Design

This typical robot is step further in robotics where technology is used in the automation of the food processing. This is an embedded system which works with the help of different algorithms of computer numerical methods for drawing similar dosas on the hot pan. This robot basically draws dosas on the hot induction plate, which enables to cook dosas of required size and shape. This prototype bot consists of a beaker containing the dosa batter with a small nozzle at its bottom. Beaker motion in the space is controlled through two axis X & Y, controlled by the stepper motors. Opening and closing of the nozzle is controlled by the servo motor and the amount of batter coming out of the tube is controlled by the pressure pipe connected at the top of the tube. Induction heating mechanism is employed for the heating of the nonstick pan. The shape of the dosa or an image is given to the Inkscape software which creates corresponding G-code files to make dosas of required shape and size. Motion of the beaker (end effector) is controlled by the microcontroller board which receives the G-code files from the universal G-code sender.