This small wooden model is made using two types of plywood: 4 mm birch and 8 mm poplar, a combination that ensures both durability and ease of assembly. It requires PVA glue (not included) and comes together quickly with clear, visual instructions.
The magic happens when you turn the crank: the rotating cam lifts and releases a small hammer, which strikes rhythmically against the base. The mechanism is faithfully based on an authentic drawing by Leonardo da Vinci, found in the Codex Madrid I, folio 101r, where he studies how a rotating motion can be transformed into a percussive action. In Leonardo’s original sketch, the hammer appears floating in the air; the DAHIMO version adds a clean, minimal support to make the structure both stable and fully understandable.
This is a miniature educational gem, perfect for classrooms, workshops, and interactive displays. It shows in an intuitive and engaging way how circular motion becomes alternate force. Fun to activate and fascinating to observe, it’s a small model that conveys a big mechanical principle.
