Lorenzo de Ferra
The figures are created with a spreadsheet program where the movement of three connected rotating discs is simulated. The sheet on which the drawing is created is placed on the first disk. the other two disks rotate at different speeds and are tied to bars that regulate the movement of the pencil that draws the figures. The figures deriving from these simulations of mechanical movements are named Spiraloids. The file for creating these figures is available.
Similarly created spiraloid, where, changing the parameters, the symmetry is lost, but not the beauty.
This spiraloid was created with a home made spreadsheet file simulating mechanical movements leading the drawing pencil. By changing the different parameters corresponding to the mechanical parts of the drawing machine the surprisingly elegant figure was created. For this spiraloid the seven fold symmetry is the dominating one.