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This stylish neo-pixel clock is built with a Feather M0. You can make it talk, play music, play chimes, and play animation patterns. You can also set the time and control options using an infrared remote, Bluefruit Connect app, or touch controls. The guide includes a 3D printed case design where you can create your own custom case out of cardboard, wood or any other material.
This is a tutorial on how to cast low-temp metal alloys using 3d printed molds. The process involves common tools and supplies - a 3d printer, silicone rubber, a hot plate, stovetop casting alloy, and a dollar store skillet. I used this process to generate locking plates for my Flat-Pack camera arm, but the same method can be used to cast more than metals - anything from chocolate to plastic, with the accuracy only limited to the precision and resolution of your printer.