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Surface modeling

Complex organic geometry.

Modeling

Overview

Surface modeling builds complex, freeform shapes from curves and patches where solid modeling falls short — think ergonomic or aerodynamic bodies. It demands control over curvature and continuity between surfaces.

How it works

Modeling
CurvesLoftRefineOutputBoundarysplinesSurfacepatchContinuitytangencySolid
ClientServiceEdgeData

Step by step, with examples

  1. 1

    Boundary

    • Define the guide curves.
  2. 2

    Surface

    • Loft or sweep between curves.
  3. 3

    Continuity

    • Blend with G2 curvature.
  4. 4

    Solid

    • Knit and thicken into a solid.
    • Example: car body panels

Overview

Lofts, sweeps, and boundary surfaces create class-A shapes solids can't, then thicken into bodies.

Common pitfalls

  • Curvature discontinuities
  • Non-watertight surfaces before thickening

Where this content comes from

For full transparency, this content is curated and verified from these sources:

ASME Y14.5 GD&T standardParametric CAD vendor documentationOppZen-authored CAD design guides