hello im working with this polysurface, and i wanted to fillet an edge but it always overlapped with one unnecesary edge that i dont know how to get rid off, the red line is the edge that i dont actually need, its like a folded surface, i want it to be flat so i can fillet the blue one, i dont know if you guys are famiiliar with blender or not, but in blender i can simply dissolve the edge, i need something like this, or atleast i can edit the point individually.
before i use _meshtoNURB it looks just fine and flat like this, i dont know how to boolean difference the object if i dont convert it first with _meshtoNURB
Such sharp, pointy triangular surfaces are always problematic for filleting.
I’m not sure if you are you trying to draw something like in the second picture which is in that case would be your reference? How is the result supposed to look like?
Please clarify and upload you Rhino file with the relevant geometry.
It is easier for someone to help you if they have a .3dm file available with your geometry. The file only needs to contain the geometry related to you question. You can click on the vertical arrow above where you type a post, or drag the file to where you type a post.
MeshToNURB replaces each mesh face with a single NURBS surface. That is all it does. It does not change the shape. The additional lines which appear in the display are isocurves. They are not edges. Isocurve display for objects can be turned on and off and the density of isocurve displays can be modified in several ways.
Did you create the original geometry in Rhino or import it from outside Rhino? How much experience do you have with Rhino?
hey thanks, i’m using rhino when i was in architectural school, but it was like 4 years ago, for now i use blender a lot, i made the gemoetry on rhino by reducing a big giant box with boolean difference until it look like that. okay i will be uploading the .3dm file later on (or maybe on another question). for now, i already have solved the problem using other software.
@Abdul_Aziz Suggestions for the next time you try using Rhino:
Think in terms of surfaces, not meshes.
Start with NURBS or SubD. Don’t start with a mesh model with a plan to convert it to a NURBS model. MeshToNURBS will convert a mesh to NURBS by replacing each mesh face with a single NURBS surface. The result is usually not very useful for further modeling.
When filleting surfaces/solids start with the largest radius fillets, and then work to the smallest radius fillets. The same applies when using blends. Working the other way only leads to frustration.
Practice creating solids in Rhino by first creating surfaces, and then trimming and joining the surfaces. . And practice creating surfaces starting with curves and lines. Some complex solids are best created starting with a simple shape such as a box and taking away parts by Boolean differencing and similar, Other shapes, a boat hull for instance, and best created as a set of surfaces. And for many objects a combination of approaches is appropriate.
Now that I see what you wanted I would approach the base by:
Create the basic shape as a collection of surfaces without the cutouts… Any crowning or curvature of the surfaces would be built into the surfaces instead of faceting.
Fillet the edges starting with the large radius corners. The fillet the small radius upper edges.
If blended surfaces are desired instead of fillets: Fillet the large radius corners. Delete the fillets. Create corner blend surfaces. Then the same procedure for the upper edges. Or use blends on the larger radius corners and fillets on the tight edges.
Finally use Boolean difference to create the cutouts. Fillet the edges of the cutouts as desired.
