Spins a profile curve around a central axis to make round objects.

Rounds off sharp corners on 3D models to make them look realistic.

Practice drawing lines ( Line ), connected lines ( Polyline ), and smooth curves ( Curve ).

Advanced modelers analyze their geometry before exporting for fabrication.

Change sliders to instantly update complex geometry.

Intermediate users transition from basic shapes to custom organic and mechanical surfaces. Transforming 2D Curves into 3D Surfaces

: Creates a smooth surface over a series of open or closed profile curves.

: Whether you run Rhino 6, 7, 8, or newer, the command-line interface, viewports, and core tools remain structurally identical. 2. Beginner Level: Building the Foundation

Combine, subtract, or intersect shapes ( BooleanUnion , BooleanDifference , BooleanSplit ).

Advanced modeling requires continuity control, mesh optimization, and parametric design. Mastering Surface Continuity