We built a specific box for the project with two internal planes. The lower internal plane serves as a support for the user’s hand and as a support for a led that illuminates the light sensor. The upper internal plane serves as a base for the light sensor and all the other electronic components: Arduino board, led lights, power bank, and thermal printer. Externally, on the front of the box, there is a hole through which users can insert their hand to activate the printing. The lid of the box is composed of a set of plexiglass acrylic plates incised with a spiral pattern that forms a small vortex. At the center of this vortex, an OLED display reproduces an eye that opens and closes. Completing the lid of the box is an LED display that guides user interaction.