From Neil Mendoza comes "Rock Band," an amalgamation of "electromechanical instruments that make music with rocks by throwing them through the air, slapping them and making them vibrate." Above, hear the band play one of my favorite Beatles songs, "Here Comes the Sun." There's no Paul, John, George and Ringo here. Instead, you've got the following band members:
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.
According to Neil, "the whole project is controlled by a computer running a MIDI player written in openFrameworks talking to a Teensy. The machines were designed using Autodesk Fusion 360 and Autodesk Inventor." You can find instructions on how to build your own Pinger here.
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