Solenoids to controll a MIDI Percussion band

Pretty neat, the author uses a bunch of solenoids to tap on percussion istruments.  I noticed that he used bolts for the “push” and made holes on both ends of the solinoid so the bolt would push as well.  Also uses foam to help reduce the return noice.  All of this is controlled from a MIDI controller (called MIDIWidget, new one on me).

http://makezine.com/projects/midi-drum-bot/?utm_source=feedburner&utm_medium=%24{feed}&utm_campaign=Feed%3A+%24{makezineonline}+%28%24{MAKE}%29&utm_content=%24{GoogleReader}