Terrain to STL

Display only — values are always stored and shared in metric.

Area

North (click point) West (click point)

Square side (km)

Rows (south) Columns (east)

No area selected yet.

Shared base height

Automatic: the first time you generate anything from this grid, the tool scans the whole project extent (not just the selected tiles) once, low-resolution, and locks that as the base reference — so tiles printed weeks or months apart, from any subset of the grid, still physically line up. Changing the origin, square size, or rows/columns re-triggers it next generate.

Not scanned yet — will scan automatically on next generate.

Water

Flatten lakes

When checked, lake/river polygons are pulled from OpenStreetMap and every point inside a lake is set to one flat elevation, instead of following noisy raw terrain data.

Debug: raise flattened lakes +100m

Exaggerates flattened lakes 100m above their real elevation so their outline is unmistakable in the preview — use this to visually check the detected shape against the real lake before turning it off.

Model

Grid resolution 120 Vertical exaggeration 1x Tile size (mm per square)

3MF export needs a sliver of room beside the model for the multi-color prime/wipe tower (Bambu Studio always requires one when a print uses more than one filament, so it can't just be turned off - shrunk here to its documented 2mm minimum). At 250mm there's only ~6mm of slack left on a 256x256mm P2S bed, so Bambu Studio may still warn about a prime-tower collision.

3MF export needs room beside the model for both the AMS exclusion zone at the front-left of the plate and the multi-color prime/wipe tower (Bambu Studio always requires one when a print uses more than one filament, so it can't just be turned off). Tiles up to ~176mm leave enough margin for both on a 256x256mm bed (P1S/P2S/X1/X1C); above that, Bambu Studio may warn about exclusion-zone or prime-tower collisions since there's no clear space left to place them.

Base thickness (mm, minimum)

Color by elevation

Color preview by elevation

up to m

above

Export format

STL (plain geometry, no color) 3MF (Bambu Studio, pre-colored by elevation)

3MF bakes your elevation color bands in as Bambu Studio height-range filament changes (one per band), so AMS multi-color printing works without manually setting up height ranges yourself. Requires "Color preview by elevation" above to be on. Load the matching filament color into each AMS slot 1-4 to get these colors physically.

Advanced

Elevation source

USGS 3DEP (US only, ~10m, hydro-flattened) AWS Terrain Tiles (global, raw) Mapbox Terrain-RGB (needs token)

USGS 3DEP covers the continental US and ships already hydro-flattened at the source — real lakes and rivers are already flat before the "Flatten lakes" step even runs. Outside the US, switch to AWS or Mapbox.