Surface
Add a picture planeSweep 1 RailSweep 2 RailCurves On 1 RailCurves On 2 RailsCornersFit Plane Through PointsRectangleCutting PlaneEdgesFrom Planar curvesLoftNetworkPatchBlendRevolveRail RevolveDrapeHeightfieldExtrudeFilletSplit and Refit SurfaceConvert to Single SpansDivide Surface Along CreasesShrink Trimmed SurfaceSurface TangentSmashUnroll Developable SurfaceFlatten SurfaceRefit Surface to ToleranceAdjust Closed Surface SeamRebuildRebuild Edges