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The ability to create multipart models and to add NURBS curves highlight the additions to Version 3.0 of FreeForm, the modeling system from SensAble Technologies. FreeForm is a hybrid package that combines modeling software with a unique haptic interface called the Phantom. Together, the elements of the system allow users to create models using the sense of touch, molding and shaping digital items as they might shape physical ones from clay.
FreeForm has been used to create models for the film and entertainment industry, and also to design toys, electronics, furniture, and other products, but previous versions confined users to working with one block of digital "clay" at a time. The new multipart functionality lets users create models in pieces. Now a designer can, for example, model the legs of a doll separately from the body, with the option of combining or re-separating the elements on the same screen. Other new modeling tools include lofting and wire cutting, which allow product designers to quickly produce compound curves based on sketch profiles, and the ability to create textures and patterns directly on models.
Previous versions of FreeForm output to STL and OBJ file formats, but Version 3.0's ability to output to IGES surfaces as well adds NURBS to the mix. Once a model is ...