Earth Sea Relief Globe

thingiverse

This traditional earth relief globe shows the sea surface, unlike other globes displaying the seabed. The small 3.5-inch globe can be quickly and easily printed using the program "globe" by DJ Moews, available under the GNU General Public License. Downloadable from http://djm.cc/dmoews.html, the program used an input file named gmted2010, which was created by DJ Moews from the USGS GMTED2010 dataset and is also available at http://djm.cc/dmoews.html. See the README file for details on this data set. The globe was generated using the command: "--map altitude data/gmted2010 5400 2700 sbigendiandibyte --gridpoints 256 --map-scale 120 >earth_sea_relief.stl". Earth_sea_relief.stl was then centered and scaled by 0.0000075 to create a 3.5-inch globe. Two STL files are available for printing: earth_sea_relief.stl and earth_sea_relief_plus_base.stl (which includes a base at the south pole). The openSCAD program relief_plus_base.scad was used to add this base. On a Replicator, the globe with added base can be printed directly on the build platform with 2% infill and two shells, taking approximately 4 hours. Alternatively, earth_sea_relief.stl can be printed with a raft and external support, which takes slightly under 6 hours.