Frank Piesik recently designed a robotic three-stringed instrument for his friend, Gregor, that features a unique sound and mechanical arrangement. Notes are selected by an array of 12 servos — four for each string — which pull down using a loop mechanism.
The aptly named Greg’s Harp is played by a solenoid-driven “KickUp” device that hits it from below and a small motor that continuously swipes with a “tape-propeller.” A coil assembly is also implemented to give the notes the ability to keep ringing for as long as needed (infinite sustain).
Read Greg’s Harp is an Arduino-powered robotic string instrument via Arduino Blog
An interesting link found among my daily reading
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