in lengthy CAD re- work. Deleting and recreating data was often the only feasible route forward. NX Industrial Design software leverages parametric features for freeform designs. Users enter parameters to control values, assign associative constraints and choose when to store features to control model complexity. The result is modifications are propagated throughout the entire Part file. The benefits Given the same reference data, Class- A designers typically produce different results. But because Class- A surfacing is procedural each designer will have repeatedly used lengthy sequences of common commands. By storing these commands as features in the Part file History, the user can ' roll- back' in time to change a feature and the model will subsequently update. Editing the Part History and re- using data effectively eliminates the delete/ re- create cycle that significantly erodes design cycle times. Furthermore, recognizing Class- A surfacing is procedural NX combines lengthy manual construction procedures into single features ( such as styled blends, sweeps and corners) to provide embedded design " sculpting" directly inside of features. Features can also provide alternative themes for a model - a common requirement of Design for all industries. Traditionally, designers modify a copy of the part. However in NX, features can simply be added to the part and grouped together preserving the underlying geometry. In design reviews, these feature ' groups' can be toggled ON / OFF to illustrate alternative design solutions. Features also assist in recognizing the ' cause and effect' of change to a model e. g. surface boundary changes during initial creation and the refinement of surface highlights near completion.
A ' Hands- on' experience Surface modelling is not an exact science, it's a hands- on experience. Designers only begin to ascertain the subtly of forms once they start overlaying surfaces. As a model matures, the surface data continually changes as designers move boundaries to achieve the required transition between surfaces. Feature-based modelling naturally lends itself to this iterative practice. The combination of features, parameters, and associativity provide continuous feedback throughout the process. To capture design intent, users typically import styled sketches ( in the form of raster images) or STL facet data for reference geometry. NX T Industrial Design software gives designers freedom to choose the best tools for the task using a hybrid modelling approach for Class- A surfacing ( typically Bezier) and conceptual workflows ( typically Nurbs). Surfaces are generated using a combination of curve- based ( sweeping or lofting), freeform ( surface and curve " control point" editing) and surface solid modelling techniques ( a Boolean ' solid' model from a 2D Sketch). Designers can also incorporate 2D sketches to create geometric forms - often found in vehicle interior design. Class- A design is synonymous with very highest levels of quality and the capability to diagnose and validate surface quality is critical. This includes Engineering and aesthetic properties such as legal constraints, manufacturing criteria and surface curvature, highlights and reflections. Furthermore comprehensive visualization tools are required to evaluate optical appearance and support the design review and model sign- off process. NX models can be rendered in real- time, animated in a virtual environment and photo-realistic renderings generated using high dynamic range imaging ( HDRI) to provide a level of realism appropriate for marketing purposes. THE VEHICLE REVIEW more information? click here! Feature- based modelling enables rapid change of the ' Styled Blend' and ' Silhouette Flange' ` features without lengthy model re- work Curvature continuous surfaces ( G3 continuity) ensure superior surface quality results