The mobility project is called 3DPRINTER and it will last two weeks, from 23rd October to 6th November 2016. Practical training will be at Gut Wehlitz in Schkeuditz, Leipzig. There will be 10 pupils of 2. and 3. year of two different fields: technicians of engineering and technicians of electrical engineering and one accompanying teacher involved in the project. The main objective is to develop and construct a 3D PRINTER capable of printing plastic objects. It means the pupils have to combine their theoretical and practical knowledge. The technology of 3D printing is becoming more and more important that is why another objective is to improve the level of key competences and skills, with particular regard to their relevance for the labour market and their contribution to a cohesive society, in particular through increased opportunities for learning mobility and through strengthened cooperation between the world of education and training and the world of work. Another important objective is the learning of foreign languagages as to encouage the diversity and cultural awarness of EU. The pupils will be forced to use foreign languages to read technical documentation, to converse with their mentor and in everyday communication. The last aim is team work, there will be pupils from two different fields (technicians of engineering and technicians of electrical engineering ) working together to assemble 3D printer which has to work. The learning technique is KNOW - HOW, where pupils learn by doing.