Users are given a blank 16x16 square that they create a design inside of. The design is repeated around the bracelet. The app uses the ModelBuilder library by Marius Watz to create the 3d shape. The bracelet starts as a grid of cubes, and creates X's in the squares that are marked black. Rather than building it up box by box, a function that allows holes to be cut into a base shape would be structurally cleaner, but the library is limited, so I may explore other libraries to use. ModelBuilder conveniently has an function to convert the shape into a .stl file, which 3d printers can read. The final piece was printed on an Objet printer.