For his birthday, the 6chronos son of e Russell Monroe requested a cake with the famous robot Transformers. Dad has fulfilled his desire, creating a cake in the shape of a truck that transforms into Optimus Prime, with the help of an electronic device.

The transformation is made with a plastic frame constructed on a 3D printer and an electric system programmed in Arduino, moving the frame with the push of a button. Also, the Optimus Prime speaks after transformation.