The project concerns the building of a technical school with a total surface of 10 400 m2 with classrooms and work-shops, a lunch room and administration offices. Around the new building there is room for a parking lot, bicycle parkings, maneuvering space and a large playground. The precast structure was produced on 4 different locations. The only way to efficiently manage this and assure that all connections were right, was to develop a 3D model. This model was used by the different production locations to extract workshop drawings. The same 3D model was later on also used to make erection drawings.