3D printed model of the mountain on the border of Switzerland and Italy. Usually a cad program that uses heightfields (greyscale to elevation) is limited to 256 steps. That would result in stepped slopes, not nice to look at. I used Rhino 3D and the grasshopper plugin Bison to import the original geotiff files with a higher resolution (16 bit = 65K levels). Much better, smooth slopes.
However, it seems that Bison does not work for the Dutch DEM files (from the Algemene hoogtekaart Nederland) ahn.nl which is annoying.
