Here’s a previous project of mine - Hornby Island, BC, where my wife grew up.
I made up a blank from two different kinds of woods - a mahogany-like wood on top, and a figured maple for the bottom. Then I set up the cut so that ocean level would just reveal the figured wood as the ocean.
All work on a S3 XL, lettering from CC, topography from ‘Touch Terrain’, the 3D paths generated from the ‘STL2NC’ web-page. No 3D modeling program used!
There’s really no design file for this project except for the lettering - the STL was directly converted to GCode.
I did a second one as well, but it failed - as the cut progressed, the wood warped so that the bottom layer wasn’t flat enough to look good as an ‘ocean’.
There’s a few more pcitures here:
https://www.facebook.com/media/set/?set=a.10158155826243457&type=3