San Francisco Bay 3d topo map

This is a model of San Francisco Bay showing the terrain above water and the contours underwater. It is based on the best available (at least to civilians) DEM and topobathy (dig that word) data.

The elevations both above and below water are exaggerated 4x to make it an interesting print. I also did a simple model of the bridges which will print at that scale. If you insist it be anatomically correct check out http://www.thingiverse.com/thing:237164

This is a dual extruder model split