About this 3D model
A dual extruder version of the Half Dome 3d topo which prints the path of the trail on the second extruder. Also note the lettering on the side (why not since you've got the other extruder hotted up anyway) Note the detail photo showing the infamous cableway section. Complete instructions on how to make models from digital elevation data can be found on my blog at http://www.the3dprintedfuture.com/shapespeare/?p=1