(Polyn)urban Renewal: General Industry Coverage
A Look Ahead piece in the September 2016 issue of Cutting Tool Engineering magazine looks at a topography-based, design-optimization tool kit aimed at simplifying design for manufacturing.
In the age of lightweighting and cost-cutting, components are regularly being designed and redesigned to give them optimal weight and strength in the fewest possible manufacturing steps. The 2016 version of solidThinking Inc.’s Inspire design-optimization software features a new PolyNURBS tool kit that allows part designers and engineers to create free-form solid geometry that is smooth and continuous by wrapping topology results with NURBS geometry. Users can then flow optimized designs into products that can be 3D-printed.
Models in Inspire 2016 show a component designed for strength (left), with optimized geometry (middle) and the final design model (right). Image courtesy solidThinking.
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Productive Times MASSIVE and colleagues. As a result, Enache and manufacturability, explained started a crowd-funding campaign Dorin Dascalu, manager of Logi- on KickStarter to raise the money cad. Dascalu and Enache concluded needed to go into production. She that the stainless steel stems should Providing simple worked with Logicad Solutions srl, be CNC-machined from bar stock.
Micro to Productive Times MASSIVE and colleagues. As a result, Enache and manufacturability, explained started a crowd-funding campaign Dorin Dascalu, manager of Logi- on KickStarter to raise the money cad. Dascalu and Enache concluded needed to go into production. She that the stainless steel stems should Providing simple worked with Logicad Solutions srl, be CNC-machined from bar stock long-term solutions which represents ESPRIT in Roma- as two modular parts, and then be
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September 2016
NURBS (nonuniform rational B-splines) is a mathematical model often used in computer-graphics programs for generating and representing curves and surfaces. NURBS curves offer flexibility and precision for modeling both analytic and free-form shapes. NURBS surfaces are created from NURBS curves and are a function of two parameters mapped to a surface in 3D space. NURBS surfaces are capable of representing any desired shape, with the surface determined by its control points.
PolyNURBS combine the ease and simplicity of polygon mesh modeling with the precision and flexibility of NURBS. A PolyNURBS object represents geometry as a NURBS surface surrounded by a transparent polymesh cage. The shape of the PolyNURBS object is the result of the modifications made to the cage, which can be manipulated using the cage’s faces, edges and vertices. When users exit the PolyNURBS tool, the cage is hidden and they see only the PolyNURBS object.
“Our new PolyNURBS tool set is a game changer, allowing users to create geometry from optimized results much faster than traditional CAD modeling,” stated solidThinking Program Manager Andy Bartels. “The result is an incredibly robust tool that has not only expanded the use cases for Inspire, but also accelerates the path to cost-effective manufacturing.”
For more information about solidThinking Inc., Troy, Mich., visit www.solidthinking.com/Inspire2016.html or call (248) 526-1920.
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