Leonardo da Vinci designed a pile driver to convert rotary motion into repeated blows for driving piles into the ground.
A pile driver is used in construction to force long posts, or piles, into soil for foundations, bridges, and other structures. Leonardo’s design used a mechanical lifting and releasing arrangement so a heavy ram could rise and fall repeatedly. The concept shows how he applied cams, gears, and controlled motion to labor-intensive building work.
The machine should not be confused with a water wheel or a windmill, which provide power rather than delivering impact blows. It is also different from a printing press, which applies pressure to transfer ink. Leonardo’s pile-driver concept belongs to his broader studies of construction machines, in which he sought to make lifting, striking, and repetitive work more systematic.