Heya, I worked for Andy doing most of the electronics on this project so if you have any questions about that, fire away! On the art side, I can emphasize some

Heya, I worked for Andy doing most of the electronics on this project so if you have any questions about that, fire away! On the art side, I can emphasize some of what was probably too subtle in the article: A major part of this project was the sound. Andy is after all, largely a sound artist/sculptor! Look at this current piece "Whale" in the MIT Museum, his instruments, etc. https://andycavatorta.com/ https://andycavatorta.com/ He went through a lot of thought to come up with the frequencies/scale, and the playing pattern of the chimes. He also went through great trouble and expense to make this pinball game have no speakers/digital sounds. The sound all comes from the clacking of the pinball relays (which yes, are driven by RPi's running Mission Pinball Framework) and most important, the 25 giant metal chimes in the center! One of his other people in his studio did the crazy work of grinding them all to just the right lengths and tuned them with a stroboscopic tuner. It took days and though she wore a full freezer suit (because it was February in Brooklyn and the heat was being repaired in the building after the building owner died and his brother inherited it and had to take over), she would finish the day with aluminum dust embedded in all of her clothing. Also, the tangible nature of the piece was a stark reaction to the other pieces in the show, and in general, his experience as an installation artist in the Boston Museum of Science. Nowadays, so many installations are just tablets. Or maybe a PC with a mouse, etc. He wanted something more tactile than that, that moves, and makes its own side. Several people have commented on the acrylic displays and Andy's general overengineering. Yes, his style is almost always overengineered, love or it hate it, that's part of the work. He likes big, heavy, arduous things. personally theorize it has something to do with his gigantic muscle growth genetics, though he does not work out! The Acrylic displays were scaled up from some person's random Arduino project.... and it turns out the upscaling was full of surprises! We needed a ton of extra light to make them glow. There weren't many LED strips available that were narrow enough, and a bunch of them broke in transit to Mexico. This was due to the sharp edges of the acrylic vibrating and sawing through them! And receiving a package of replacements from DigiKey was not simple. He had to do a lot of paperwork and travel for hours in an Uber to get the package of replacements. Also, just keep those pieces of acrylic clean, dust-free and hand-grease free was a pain! Also here's another secret: Andy almost never uses CAD for his projects. This was his first, or one of his first big projects with CAD and he made the classic mistake of designing the container for the acrylic displays with no space for fasteners! Fortunately, he managed to make it work. Behind the rear of those displays are dozens and dozens of mini boards with FET drivers and constant current drivers... all driven from cascaded shift registers!