Uploaded September 2025 | Updated September 2026, 2 weeks ago

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In this tutorial, we’ll show you how to take a Civil 3D model from cleanup to import in cmBuilder. You’ll learn how to verify and isolate contour lines, create boundaries and surfaces, export to Navisworks (FBX or NWD), check geolocation and scale, and build accurate project-specific terrain.

00:00 Intro
00:07 Importing a Terrain from Civil 3D
03:45 Create Boundary
06:26 Create Surface Item
10:20 Specify Boundary and Check Geolocation
13:35 Open DWG in Naviswork, Check Scale, Export FBX
16:37 Import to cmBuilder