This poster reflects the experiences of the discussions and projects with (mostly) SMEs since 2015, but no quantitatively secured results due to different settings and the long-time observation period. • 3D printing is currently no transformation trigger for SMEs (Hamburg ca. 2020) • Industrial production is changing, but traditional SMEs have not yet adapted the technology to any significant extent • German system of craft training seems to retard the adaption • Relationships of dependency and power to larger companies might be driving factors • Corona was a disruption in the digitalization process (many cancelled cooperation and transfer projects)