Yosemite's 4 mile trail switchbacks 3d topo
thingiverse
This is a detailed model of the switchback section of Yosemite's 4-mile trail. The terrain is so steep that the trail is carved into the rock which, in addition to making it one of the world's most spectacular hiking trails, makes it visible in the 3d model. I recommend hiking this trail in the downward direction. The data comes from http://opentopo.sdsc.edu/ where you can freely download amazingly detailed datasets from around the world. We talked about this thing and a whole lot more on the 3D Printing Today podcast available on iTunes, Stitcher radio or direct from the source at http://threedprintingtoday.libsyn.com/ The technique for making these models is detailed in my youtube video https://www.youtube.com/watch?v=t4-ICkvyJv0.
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