4/1/2023 0 Comments Subd to nurbs rhino![]() ![]() ![]() Additionally, the mesh is “reverse engineered” and replaced with NURBs surfaces, all in Rhino 4.0. This PDF file describes the process of cleaning up a scanned mesh and making it ready for STL printing. (There are CAM programs that can take mesh files, if that's the problem.) And if you do need to, then either get help from someone with the Rhino experience–there's no trick, you just have to know Rhino really really well– or get specialized reverse engineering software needed to do it in a reasonable time frame. My advice would be to not undertake this point cloud to NURBs task unless absolutely necessary. I've done it and it is not an easy or particularly enjoyable process, unless it's a terrain map in which case it should be feasible to get something with Patch. Reverse engineering is about the hardest thing to do in Rhino, depending on what the scanned item is. To navigate, click the little text angles at the very bottom right of each page. Look here and the following pages for applications that automatically create NURBS surfaces from point clouds or meshes. Comparing surface types: NURBS, SubD, and meshes From: Introducing Rhino 7 Video 47s Intro to Ladybug plugin From: Grasshopper Essential Training Video 11h 10m Grasshopper: Tips, Tricks, and. But you could also use the PointCloudSection command in Rhino to reverse engineer curves first, then use those curves to construct NURBs surfaces. The Patch command is the only tool you can directly use to create a surface from a set of points. Rhino 8 improves this process a step further than Rhino 7 by adding the ShrinkWrap command. However, depending on your requirements, Rhino might have enough tools to get the job done. Rhino is not a reverse engineering program, since there are many aspects and tools needed to do reverse engineering. Therefore by reverse engineering it back into a geometry that can be transformed with matehmatical precision, such as NURBS, the object can then be manipulated and edited to taste and sent back to any kind of prototyping machine. For instance, you cannot define precisely a radius or curvature on a mesh. This precision is often required to manufacture the model back into a physical object. However, due to its nature, meshes are hard to manipulate in a precise way. ![]() A mesh is a succession of flat polygons that define a shape in 3D space. ![]() Reverse Engineering is the process of transforming a Mesh or Point Cloud, usually coming from the scan of a physical object, into a type of 3D geometry that can be editable to manufacturing standards. ![]()
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