Mathematically defined rocket ship

thingiverse

This is a demonstration of an open source tool chain that produces an object defined by a formula. I used the following Octave script to generate the STL file: clf; [x,y,z] = meshgrid (-2:0.05:2, -2:0.05:2, -2:0.05:2); kr = 0.5; v = (x.^2 + y.^2 + ((z - 1.)*0.5).^2).^kr + ((x - 0.943).^2 + (y).^2 + ((z + 0.333)*0.5).^2).^kr + ((x + 0.5).^2 + (y - 0.816).^2 + ((z + 0.333)*0.5).^2).^kr + ((x + 0.5).^2 + (y + 0.816).^2 + ((z + 0.333)*0.5).^2).^kr; v1=v1*600; [f1,v1]=isosurface (x, y, z, v, 4.8); axis equal; patch("Faces",f1,"Vertices",v1,"facecolor","r"); # from http://iso2mesh.sourceforge.net # note that 'savestl' rescales the shape savestl(v1,f1,"blob07_octave.stl"); Note that the file is scaled to be quite small, so I rescaled it in Slic3r to make the 40mm version.