Detailed model of Leonardo's mechanical drum Rendered with C4D. All materials and textures are included,but it could need some texture reassigning.Material enclosed for c4d only. Polygonal Polygons 23502 Vertices 26568 The drawing is a cart equipped with a mechanical drum. When pulled or set in motion by a handle, the gears turn the two lateral drums which are fitted with pegs (cams). These pegs, which can be placed in various positions, move ten sticks (five on each side) that beat the large drum on the back. Changing the position of the pegs alters the rhythm of the music.