Music Box Plays “Still Alive” Thanks to Automated Hole Puncher



Custom hole punch and feed system

Most projects have one or two significant aspects in which custom work or clever execution is showcased, but this Music Box Hole Punching Machine by [Josh Sheldon] and his roommate [Matt] is a delight on many levels. Not only was custom hardware made to automate punching holes in long spools of paper for feeding through a music box, but a software front end to process MIDI files means that in a way, this project is really a MIDI-to-hand-cranked-music-box converter. What a time to be alive.

The hole punch is an entirely custom-made assembly, and as [Josh] observes, making a reliable hole punch turns out to be extremely challenging. Plenty of trial and error was involved, and the project’s documentation as well as an overview video go into plenty of detail. Don’t miss the music box version of “Still Alive”, either. Both are embedded below.

As [Josh] mentioned on his project page, he was inspired by a tutorial video showing how to punch music by hand. It led to this tool to take a MIDI file and cut the music paper out on a laser cutter, whereas [Josh] and [Matt] were inspired to automate the entire process in their own way.

For those of you who don’t think science should stop there, why not automate the creation of the music itself with the output of this Bach-emulating Recurring Neural Network?

Thanks to [Tim Trzepacz] for giving us a heads up on this delightful project!



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