Hello guys! Can any body help me. I am trying to model a mooring bollard and have some problems with top part of it. This is an example of what it looks like:
I made some curves, which determine the shape:
First, I tried to use sweep 2 tool. Here is the result:
As you can see, it does not keep angle along rails.
Than I tried to use “surface from 2,3,4 edge curves”:
The same story as the result. Moreover, that tool has no options at all.
Finaly, I decided to use “surface from network of curves”:
Not bad, but I am not satisfied with that big dent. All options in the pop-up menu do not make any changes. Any Ideas? I am new to Rhino, but I am sure there is a way to model such kind of shape. Thank you in advance!
Nice! Sir, you made my day) I guessed the answer was hidden in that bottom section of settings. I don’t know, how to deal with them, but now it’s the matter of couple of youtube tutorials. I approve your solution, thank you!
Hi @alba95,
Yep, as @martinsiegrist already mentions, this shape screams for SubD.
Of course, it is very friendly that Martin offers a solution with ‘old skool’ Nurbs. But editing the shape will be very cumbersome and not to mention creating a smooth result.
Please find attached a SubD example that shows the power of SubD with this type of shapes, especially as these kind of products are often from a mould and probably forged to give it the proper material specs.
This solution also shows a nice application of the new SubD Crease functionality in Rhino 8.
In the assist layer, there are multiple red color polygons that are used to create the circular shapes.
The clipping plane is useful to isolate the part of the object that you are working at. 80kNa- RhinoCentre.3dm (2.3 MB)
Amazing! I should definitely learn more about subD. Unfortunately, can’t approve two solutions at time, but your work really impressed me! I tried to import your model in Revit, but it went wrong - I got an error. Seems like Revit does not support SubD elements.
Running ToNurbs creates a pretty dense object that Revit does struggle with. Depending on your needs, you may do better with a mesh import. Here’s the nurbs and mesh side-by-side in revit. I used to see mesh as a second-class citizen in Revit but since they’ve fixed the graphics for mesh wires they’re much more usable. They’re also extremely lightweight compared to Nurbs objects.
EDIT: as a bonus, now that we can get beautifully structured meshes out of QuadRemesh your coworkers / consultants should have better respect for the workflow
Well done! As far as I understand, the same type of model I could create in Blender or Max. It’s so pity that Revit does not import those. By the way, what is your Revit version? I have version 21 and I get an error when I try to upload your QuadRemesh file.
