Home DIY & Hacks Rock Band: Electromechanical Instruments Make Music with Rocks

Rock Band: Electromechanical Instruments Make Music with Rocks

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Meet the Rock Band: electromechanical instruments that make music with rocks by throwing them through the air and vibrating them. The rock band consists of a Pinger, Spinner, Slapper, and Buzzer. Here is how they work:

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  • Pinger – fires small rocks at aluminium keys using solenoids.
  • Spinner – launches magnetic rocks, Hematite, at pieces of marble. Rocks are launched by spinning magnets using Applied Motion applied-motion.com stepper motors.
  • Slapper – slaps rocks with fake leather.
  • Buzzer – vibrates the plunger of a solenoid against a piece of marble.

The whole machine is controlled by a computer running a MIDI player written in openFramworks and a Teensy.

More info is available here.

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