Terrain workflow guide
Turn available lidar terrain into a printable or fabricatable mesh
Use the terrain available for a selected region to create an STL, then choose a physical scale that makes its relief readable and fabricatable.
Useful for
Landscape architects, terrain modelmakers, educators, fabricators and designers studying topography
You will make
A terrain-led STL with open-data context, suitable for inspecting, scaling and preparing in a mesh or slicing workflow.

From elevation data to terrain mesh
- 1
Pick relief, not just a place name
Choose a boundary that includes the ridge, slope, drainage, waterfront or site relationship you want to understand. The result is strongest when the terrain itself tells the story.
- 2
Review the terrain source expectation
Check which terrain source is expected for the location and its nominal resolution. Regional lidar can preserve more local relief where available; elsewhere the model may rely on lower-resolution elevation data.
- 3
Generate STL and inspect the mesh
Select STL, generate the region, then inspect the downloaded mesh for the slopes, water edge and context you expected. Compare with a current terrain reference before using it for a decision.
- 4
Choose scale and vertical treatment deliberately
Set print scale according to the physical size and resolution of your output. If you exaggerate vertical relief downstream for presentation, label it clearly so it is not mistaken for true-scale terrain.
- 5
Prepare for the fabrication process
Use your slicer or mesh tool to check manifoldness, add a base if needed, set supports/orientation, and make a small proof before committing material or machine time.
Open-data limits
Check the context before you design against it
- Lidar is regional rather than universal; Rescape may use lower-resolution terrain sources when high-resolution coverage is unavailable.
- Bare-earth elevation products can differ from visible surfaces near trees, bridges, buildings and water.
- Vertical exaggeration, scale and downstream mesh edits are presentation choices, not source measurements.
- Use the result for visualization, study and fabrication—not slope certification, drainage design or engineering.
Regions that demonstrate this workflow
San Francisco
Central San Francisco — DXF + STL
Seattle
Central Seattle waterfront blocks — DXF + STL
London
Westminster and the Thames — DXF + STL
Continue with a related guide
STL · physical model
3D-print city model
Select a compact real-world area, generate a terrain-and-building model, then prepare the STL for printing at a scale your printer can resolve.
DXF · CAD context
CAD site-context model
Draw a project boundary, choose useful context layers and export a layered DXF with terrain, buildings, roads and water.