Hello everybody! I would like to create a surface with a network of curves but for some reason it doesn’t work. [Untitled-1] curve.3dm (33.9 KB) I think it’s because it has more than two “direction”. Is curve network will work for this case? if not what would be the appropriate tool for creatin…

Hi Paul - there isn’t a way to make a surface from the curves - it will need to be multiple surfaces and a bit of planning. Nice challenge… -Pascal

Network surfaces requires some implication of U and V directions. That shape you have would need to be multiple nurbs patches. Some links. http://docs.mcneel.com/rhino/5/help/en-us/commands/networksrf.htm [image] Non-uniform rational B-spline Non-uniform rational basis spline (NURBS) is…

You can likely follow this tutorial . It’s for Alias users, but the method works exactly the same in Rhino, because also Rhino is a NURBS based software. You only need to model the two different fundamental domains of your total shape, because you have multiple symmetries, so it should be a fairly st…

Hi, Thanks for your answers, sorry for the late reply. Yes unfortunatly i thought that it would be more complex than a curve network surface…:expressionless: I will try this last tutorial you send Lagom and share the result when done, hopefully it will work :muscle: Regards, Paul

No need to worry, it’s actually not complex at all, if you look at the video, at the principle. Rhino has the tools to do achieve the same result.

Hi Everyone, I tried the tutorial you gave me Lagom, and I have an issue of curvature. when I create the first fraction of a surface and that I mirror it, the other surface is in curvature with the other one but creates a weird junction. You can see with the curvature analysis that something is not…

Your original curves have far too many CPs. Always try to use single span degree 5 or 7 curves and only use more when absolutely necessary. Also it helps to keep things like this aligned to the grid and symmetric; it makes it much easier to work with numbers where necessary. In your case, with the …

Thanks for your answer it helps a lot, -My original curve is made with a blend curve, and this tool doesn’t allow for controlling the number of span. Should i rebuild it by simplifying it? which command can I use it for. -The part you made use a an extrusion going along the upper crv (see picture)…

You can just use the rebuild command to assign span and control points. Is it perhaps issue with continuity of the curve at the points where the split surfaces occur? can be checked by gcon command. May need to explode the curves first. To fix you can use match command and assign continuity.

[image] paul_duterque: however it’s made of 3 different surfaces instead of 1 on your extrusion I used a single span degree 5 curve and then swept a short line along it. And, as Toshiaki says, you can/should use the rebuild and match commands.

Surface with curve network

Rhino Rhino for Windows

Gijs (Gijs de Zwart) May 17, 2018, 7:43pm 14

Rhino 6’s SubD seems to give a quite pleasing result for this particular shape

curve_sg.3dm (395.2 KB)

Almost T-Joint/Star-Joint how would you model this?

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Surface with curve network

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