Carving of Denali with layers of oak and walnut. This took about 10 hours of total time on the cnc with most of the time in the finishing pass to get a very high resolution finish. The stl file that I imported to Fusion for tool path generation came from touchterrain, a website which I have linked below and have really enjoyed. You can get pretty decent resolution stl files of the terrain anywhere on earth and I have used it with both my cnc machine and 3d printer.
http://touchterrain.geol.iastate.edu
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