The project "Border grinding machine - Build together!" is based on the idea of constructing and building an interactive machine/installation that would be put in the public space during the final events at the end of the workshop period. During the workshop participants would be able to learn how to use power tools, work with metal and create from the beginning the movable structure that would be used for further interaction in the public occasions. Participants would also prepare the final presentations - specific machine performance in order to play with the visitors of the final event/s.The project lasts for 12 days and takes place in Serbia, both in the town of Svilajnac, where the workshop would be held and in Belgrade where the final show would be performed. It is the collaboration between German organization S.C.E.N.E. 5 (sending) and Serbian organization Karkatag (hosting).The project aims to offer the possibility of the creative approach to metal work, engineering and inventions. Participants would be able to work together on the project management examining and introducing their backgrounds. Active participation of young people that are experiencing social difficulties and exclusion is the high priority and the collaboration with people coming from different cultures should bring to mutual understanding and respect.