Jansen leg system construction
The modelisation of this Theo Jansen linkage relies on the use of circles with pre-defined radios in order to fix the lenght of the bars and to synchronize the movemnts.
Four slider are included to modify the crank diameter and the proportions of the linkages.
https://robotix.ah-oui.org/site-adm/main.php?found=241101-GeoGebra