If you've ever seen those little music boxes you wind up, or crank, and they play a little tune over and over from a little metal drum of notes, but wish they did more than play the same 10-second tune over and over for eternity? If only you could change the song and write your own music for it... Now there's an idea.
After a year of design and work, I completed my Re-Programmable Music Box / Mechanical Synthesizer / Organ Grinder Thingy. It has many names, and is 100% non-electric. Just wood, metal, and good ol' people power.
I began this project as a sort of proof-of-concept, designing something from scratch without a lot to base it off of, and a whole lot of engineering problems to solve. Also, I didn't really know what I was doing. It was intended to be a learning and problem-solving experience. And it was a lot of fun.
If you like my work, please vote for it in the Woodworking Competition beginning October 3rd.