How to convert files from SpaceClaim
to Rhino?

SpaceClaim is a solid modeling CAD application that runs on Microsoft Windows. It is developed by SpaceClaim Corporation, but now owned by ANSYS.

SpaceClaim’s 3D direct modeling technology is expressed by the following tools: pull, move, fill, and combine.

Pull contains most creation features which can be found in traditional CAD systems. For instance, using the Pull tool on a face by default offsets the face, but using the Pull tool on an edge rounds it.

Move relocates components and geometry, and can also be used to create patterns (often called arrays).

Fill primarily removes geometry from a part by extending geometry to fill in the surrounding area. It is commonly used for deleting rounds and holes from a model.

Combine merges parts and subtracts parts from each other.

Rhinoceros (typically abbreviated Rhino, or Rhino3D) is a commercial 3D computer graphics and computer-aided design (CAD) application software. Rhinoceros geometry is based on the NURBS mathematical model, which focuses on producing mathematically precise representation of curves and freeform surfaces in computer graphics (as opposed to polygon mesh-based applications).

Rhinoceros is used in processes of computer-aided design (CAD), computer-aided manufacturing (CAM), rapid prototyping, 3D printing and reverse engineering in industries including architecture, industrial design (e.g. automotive design, watercraft design), product design (e.g. jewelry design) as well as for multimedia and graphic design.

The Rhinoceros file format (.3DM) is useful for the exchange of NURBS geometry. The Rhino developers started the openNURBS Initiative to provide computer graphics software developers the tools to accurately transfer 3-D geometry between applications. An open-source toolkit, openNURBS includes the 3DM file format specification, documentation, C++ source code libraries and .NET 2.0 assemblies to read and write the file format, on supported platforms (Windows, Windows x64, Mac, and Linux).