Hi, Im trying to use NetworkSRF tool here, But with the highlighted curve, I keep getting this error. Without including that curve, the NetworkSRF works… But I need the mesh to be more accurate. What are some ways to achieve this? thanks!
1 Like
@kyungseo Welcome to the forum. It is very helpful when answering a question if the person asking the question posts a .3dm file with the geometry they are asking about.
For NetworkSrf all input curves in one direction must cross all input curves in the other direction and cannot cross each other. Rhinoceros Help
Also the curves in one direction must go from one edge curve in the other direction to the second edge curve in the other direction.
The curve you highlighted does not meet these requirements.
How much experience do you have using Rhino?
Another approach is to not use the curve causing problems, and then edit the resulting surface to provide the needed shape. You could also use Sweep2 instead of NetworkSrf.
2 Likes
Yeah thats a good tip!
I see, I’ve eliminated the highlighted curves and trying out with some other curves. Thanks!
You will get better results if you clean up the curves so that the ends do not stick past the other curves.
1 Like
https://discourse.mcneel.com/t/networksrf-weird-edges/167168
Duplicate topic.
Can someone please merge them or close one of the two?
1 Like
Hey everyone,
I’ve been trying to fix my surface network shape. There’s an original shape I’ve made in Blender that I’m trying to match in Rhino, so I had to add some more curve lines. I noticed that in the inner side of the shoe last, I see that the curve made a very sharp edge which disconnects the smoothness. Is this a common isse?? thanks
last_1.3dm (2.2 MB)
1 Like
Put the surface on a different layer than the input curves.
Clean up the curves so they don’t extend past the top and bottom curves.
The surface is following the curves. You need to change the curves to obtain a different surface.
How much Rhino experience do you have? Are you a student?
Are you required to create a single surface using NetworkSrf? There are probably better approaches for creating this shape.
1 Like
Hey Yeah maybe its not the tool I should go for, I cant get the same shape as my imported shape. I’m a student who just started with Rhino. If you know any other tools that I can try, plz let me know, cheers!
Guess it depends if you need a ‘mesh’ or not. But I’d start by revising your curve network and cleaning up some anomalies:
Not sure what you mean. The network can be improved, most likely.
I’m seeing a kink that could be fixed with some better flowing additional curves:
last_1_emod.3dm (7.3 MB)
If I get more time I might work on it. I’d just be guessing though, I don’t know the design intent.
1 Like
Hey,
Thanks for the fix. Right I forgot to explain the intention in the first place, I’m basically making a physical shoes. And now first modeling the shoe last that is foldable like in the video below. I’d like to 3d print the shoe last and make the shoes on top of it.
I didnt get what you meant by if i need a ‘mesh’ or not, but I have to first create this shoe last and add the hinge feature like in the youtube video.
The sharp edge I meant was the curve that is in the highlighted area. I see that it makes weird transition whereas others seams smooth. I’m curious if theres other commands that could be better for this. Thanks!!
1 Like
If you made it in Blender try importing it from Blender and using SubD tools.
Not sure if Blender can import subD directly, but maybe you can make a low poly mesh version in Blender and import that to rhino and convert to subD or maybe you can use QuadRemesh to convert a denser mesh imported from Blender?
1 Like
All surfaces are basically just networks of curves. Regardless of the surfacing approach, you’ll always have a network underlying the surface.
It get’s weird when ppl start manipulating degrees and weights, but degree 3 surfaces seem to be pretty standard – imo.
It doesn’t really make sense to mess with degrees beyond 3, and control point weights beyond ‘normal’, because CAM software might not be able to interpret all that silliness.
We’re still in the stone ages, CAM software isn’t even that advanced yet, and CNC machines barely track accurately using more than 3 axes simultaneously – it’s just silly even trying. You’d be lucky to get +/-0.005" all the way around 6 sides, with smooth polish surface finish – after all is said and done.