I milled out the mountain “Matterhorn” from Switzerland. It turned out very well!
I downloaded the 3D data from this site: http://gdem.ersdac.jspacesystems.or.jp/
You could mill the whole World if you would want to.
I did it with these instructions: https://3drucken.ch/2012/07/relief-des-mont-blanc.html
but it is a German instruction. If anyone want to do a thing like that just say it and I will translate it into English.
Nice job! Must be a german thing 
I am from Germany and that was one of the first things i did too (of the area in California i live in now though)
From where do you have the 3D data? From the same site as I?
I got it from Google maps a few years ago so i’m not sure anymore what steps i used. I used the model for my first 3d printer.
That is very cool @Kaname04
Richard Dreyfuss in Close Encounters of the Third Kind could really have used a Nomad… much better than mashed potatoes 
Kaname04 and oliverblum, very cool work.
There are also a few terrain-milling threads at the MeshCAM forum by CNCzane that go into workflow:
http://grzforum.com/viewtopic.php?f=3&t=1292
http://grzforum.com/viewtopic.php?f=4&t=1335
http://grzforum.com/viewtopic.php?f=4&t=15009
http://grzforum.com/viewtopic.php?f=4&t=15170
Both reliefs look awesome!
Can either of you share your toolpath settings and the machining time needed to create these reliefs? I’m programming a similar job now and getting estimates over 1000 minutes =( .
I did it with the “Carbide Auto Toolpath” Script with the highest quality and the material “Wood-Hard”. I used the #101 Ball cutter.
or in inch
My object is 100 mm (40 inch) long 77 mm (30 inch) wide and 26 mm (10 inch) deep.
I hope it helps.
Yes this helps quite a bit actually. My I was doing my finishing passes with the 1/16th in ball end mill and running on both x and y axes. The stock is also a bit bigger at 7.5"x7.5"x1.5". Did you have to do much sanding after your piece came off the machine?
I didn’t had to sand the piece at all. It was perfect the way it came out of the machine 
I’ve finished my carving of Mt St Helens and decided to go a step further to make it into a cribbage board! The size of the piece is about 7.5" square milled out of 1.5" thick Walnut. The entire project took a while to complete because it’s double sided with keyholes on the back so that it can be hung from the wall. The Nomad Pro didn’t have any trouble with the roughing parameters that I set, so I think I’ll be a little more aggressive for the Mt Hood and Rainier versions.
Crib Walnut 3D 125ball.tps (2.1 KB)
It looks very cool
From where do you have the 3D data?
I got the data from google maps by using sketchup to extract it. It was a very slow process and I’m sure there is a better way but I was able to grab all of the data that I needed. If I go through this exercise again for a larger area, I’ll definitely search for a more efficient way to get the topographical data.
The United State Geological Survey (USGS) has topo data for all of the US available for free:
http://nationalmap.gov/elevation.html
There are programs available that allow coverting the data into various formats. One of those should useful for your efforts.
mark
The trick with extracting the topo data is that you need to make sure that it’s in a form that you can manipulate afterward if you want to add thickness or features to your model. Stl files are point clouds and can’t be edited so you need a nurbs surface or solid model to begin with. My process was convoluted but I have access to the tools to make it work.
Sketchup- Topo Extraction
Rhino- Nurbs surface draping and extrusion into solid model
ProE- Import model and add features (because I’m not very proficient with Rhino)
Meshcam- For the majority of toolpath generation
Fusion 360- For the keyhole cutting and hole drilling (each hole is .3" below the surface at that point which I couldn’t convince Meshcam to handle.)
