In a short pre-lab further activities, their organization during the period, the interaction among the different disciplines in the lab are presented and discussed between teachers and students. The first part of the lab works consists in a survey and critical reading of the projects produced by the students in the first and second years; at least a significant part of one of these projects is chosen to be the object for the further, more specified, project activity. In the second part of the lab a detailed analysis of the chosen project is made. In the third part of the lab every components of the project is defined and construction drawings and papers are produced. The final project is the result of co-action of all the disciplines working in the lab.