The 3DPlot AutoCAD add-on utility we have released a couple of days ago can be used to "materialize" (print) math expressions describing interesting 3D surfaces. This can be used both for educational purposes and for manufacturing nice pieces of technical art. 3DPlot generates 3D mesh surfaces from any math expression of the type Z=f(X,Y) that you encode in AutoLISP. The generated surface modelsGo to the original post...