3D vector tool path

[Julien]

I’ll add that you might find interesting ideas in the definitive thread from @ClayJar for all things terrain:

Terrain Relief Models, Unabridged

Terrain Relief Models, Unabridged [IMG_20190415_104354-01] When I was musing about picking up a Shapeoko, the project I had in mind was carving a terrain relief model of Mount LeConte in the Smokies, and in my head I also had the trails engraved onto the model. In the quest to make this thing in my head a reality, I followed various trailblazers, perfected workflows, had epiphanies, scrapped entire workflows, wrote some plugins, added a laser, and eventually arrived at what seems to me like a…

He uses a laser to draw the trails, but I guess adapting it to use a small tapered endmill would be doable.