Leonardo da Vinci's paddle boat (from his sketch in 15th century codex)

Here is my vision of Leonardo's paddle boat... 20 centimeters long 3D print. Modelled at home with xDesign (Dassault Systèmes 3DEXPERIENCE platform) for a 3D design challenge at my office. Parts printed at Dassault Systèmes headquarters, on Ultimaker s3 and s5... I did the assembly, the device almost works as intended ! I did not win the contest, but had some glory in the Accountings department where I work ! :) The animated model can be seen here : https://www.youtube.com/watch?v=4q3KmYt3pMM