![]() Compared with NURBS, the advantages of T-splines can be reflected in the following aspects. Theoretically, a T-spline surface can represent any arbitrarily shaped model no matter how complicated its topology structure is. in 2003 to conquer the limitations of NURBS in practical engineering applications.Īs a generalization of NURBS, T-splines introduce T-junctions and extraordinary points into its control mesh. Thus, T-splines were firstly proposed by Sederberg et al. Nevertheless, in modern industry, complex engineering models comprised of multiple NURBS patches are always not watertight because of the existence of gaps and overlaps along the interfaces of trimmed NURBS surfaces. Infinitely faster than if you try to slice up the model in Blender.With a series of excellent mathematical and algorithmic properties, non-uniform rational B-splines (NURBS) has been widely used in the field of computer aided geometric design for representing curves and surfaces. This software is so savage, it even automatically creates an animation of assembly steps and prints plans for you. Cardboard, wood, plastic, combinations, etc. We can literally have these sections cut from whatever flat material we want. We havent decided on what material to use just yet. These are some progress shots and an example shot. The body can still be shaped without it, but just something to help the team. The complex surfacing of this car makes it difficult to create a solid piece, so I might go back and create a solidbody version of the car to become more “slicer friendly”. That’s all the skill of the master bodywork specialist. With a skilled bodywork specialist, we can still get good surfacing on the final build. The original plan was to 3D print a foam plug (just a cnc styrofoam cut version of the car to build the skin off of), but at 15 thousand dollars, we are deciding it’s cheaper to create a digitally precise computer generated buck. We’re using Slicer for Fusion 360 which imports STL models, analyzes it, lets you customize the cuts you want to make, and automatically calculates the instructions and layouts you need from the print job to assemble the model in real life. It’s a sectional cut of the model that will be printed out to form the skin on top of. So we’re at the stage now creating what we call a “car buck” or a buck model. I fully agree on the Alias price but this is made for the car industry ! they work on a different budget. In Rhino it is more make a copy undo / untrim restart = lot of labor work Obviously if money is tight and you don’t need parametric / design history then Rhino will serve you well.Īs a designer I just want to be able to adjust my design and explore design variations faster. The thing is Rhino besides having tons of tools like 10 ways to draw a line (face palm) just lacks design history and the same class-A modeling tools you really need that Alias offers. ![]() Instead of Rhino I rather would go then with Inspire from Altair as it offers nurbs and sub-d in one workflow with a design history that is object based like Alias. It is not even at the same league like Alias or NX which is even more expensive. ![]() Yes it is cheaper and that is also what you get for it. I am a former Rhino user and I would never use that app again. For various reason the Alias team decided to go a different route namely using the Pixar Sub-D. Inventor and Fusion360 continue using T-Splines. You confuse Alias Speedform which was based on T-Splines with what Alias settled for. ![]() Rhino also has SubD to nurbs support (V7 WIP) which they claim produce higher quality nurbs surfaces than what both Catia (IMA) and Alias (Speedform) has.īut perhaps more importantly, Rhino costs a fraction of the subscription for Alias and you can keep it forever, plus you don’t have to sell your soul to Autodesk (which amongst other things enables them to at any point they desire audit all the computers on your network). They use a technology called T-splines, which up until Autodesk bought it, was available for anyone to license. Alias doesn’t use Pixar’s (Catmull Clark) Sub-D. ![]()
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