This is part of the series of 30 exercises developed during the E3D+VET program. The aim of this Erasmus+ program is the immersion in 3D printing of VET centres (website: ). This exercise is composed of several pieces, all the same size. It is intended to have all the letters and numbers of the Latin alphabet, and if desired, some specific letter of a specific language, such as: ü, ö, ñ ... Minimally, the model will be composed of: 26 corresponding to the letters from “a” to “z” of the Latin alphabet. 14 symbols. The most representative, such as: @ +,. – ( /:; # etc. The numbers from 0 to 9 correspond to the first 10 letters of the alphabet, so it would not be necessary to print them in duplicate. This alphabet can be used with gamification techniques inside the classroom, for example simulating the Scrabble game. In this case, it would be convenient to print several pieces of the most common letters, and some bases to support the pieces.