SketchUp Plugin Tutorial | TopoShaper from Fredo6 is a SketchUp plugin that generates extremely smooth meshes from contours. It is extremely easy to use and is available from the SketchUcation PluginStore. sketchucation.com/resources/plugin-store-download You can also grab it from here to manually install it... sketchucation.com/forums/viewtopic.php?p=470701#p470701