Isosurface Burr Bowl

thingiverse

Human: I just created an isosurface, and it looks surprisingly like a traditional wooden burr nodule from a tree, which artisans often turn into decorative bowls. My wife finds it very tactile and pleasing to hold.\nPrint Settings\nPrinter:\n Eaglemoss Vector3\n \n Rafts:\n Yes\n \n Supports:\n No\n \n Resolution:\n 0.2mm\n \n Infill:\n 20%\n \n Notes:\n The model is in the STL file upside down so that it requires no supports.\nHow I Designed This I began with some code I give my students to help them start 3D graphics projects. This helps them create models in Vertex and Index Buffers programmatically. I then grabbed the Marching Cubes function from here, and used it so that I could feed in an equation and get out a Vertex Buffer containing a given iso-surface of that equation, display it and then spits out a basic obj file.\nAfter much playing with various equations I got a mostly spherical object with strange tubes running through it, from the equation given below. This was then put into Netfabb, where I sliced it in half and also a sneaky slice on the bottom to allow it stand better. Lastly, a sphere was taken away from the object using Boolean operators.\n\n \n \n Equation ((1.0 / 3.0)*(cos(x*x) * cos(y*y) * cos(z*z)) + (1.0 / PI)*(x*x + y*y + z*z) - sqrt(x*x + y*y + z*z) - (1.0 / 2.0)*(cos(x*y) cos(y*z) cos(z*x))) = 0