Rhino WIP has many improvements to the fillet and chamfer commands: FilletSrf, ChamferSrf, FilletSrfCrv, and FilletSrfToRail Continue across faces option for FilletSrf and ChamferSrf. Simplified (revolved) surface for FilletSrf and ChamferSrf where possible. Interactive Dialog for ChamferSrf. Bett…

[image] MattE: As for the top surface being divided and consumed by the fillets as they increase in radius, while it may not be the design intent, I can see the logic in it and it does make some sense. I’m so used to how it creates fillets that I’ll often use it to intentionally create a shar…

@ftzuk actually that is a different type of Fillet than the one I was showing, where I keep the edge of the fillet. What are the options you set to create that fillet, does it have a special name? It’s not clear to me what rule is being used to make that fillet.

In my humble opinion, to create complete and convincing fillets we should look at how the various solid modelers behave (with Parasolid kernels, such as Catia and NX, to name the most professional). By now these CADs are well tested and, with their various command options, they are able to perform f…

It’s just a regular rolling ball fillet in pro/e wildfire 4 without any additional options set. I find the fillet in proe generally has a ‘let me try and get it done’ approach which usually produces a result I’m happy with. It also allows you to fillet and drag the handles out to create nice feature…

[image] Gijs de Zwart: It’s not clear to me what rule is being used to make that fillet. I don’t think there is any rule. The Creo developers just don’t know how to do anything else. I believe they are doing what Bobi showed above . The two fillets intersect and are trimmed against each othe…

This is an example of a use case where I have no issues creating the fillet in Plasticity3D, whereas the command fails in Rhino WIP. accessorio 2 pz_FILLET-RHINO9.3dm (6.7 MB) [vdsvdasfgfasdg]

It can be done, but there’s a few things to consider. The front triangular face has a singularity in one of the lower corners. It is better to replace that with a trimmed planar surface. I think this is the failure you’re seeing in your screenshot. You need to follow the order of larger radius to …

Yes, the problem is the singularity of the surface. I tried with a trimmed surface and there were no issues with the fillet, but what I wonder is: why doesn’t this happen in Plasticity3D? [vdsvdasfgfasdg]

why doesn’t this happen in Plasticity3D? Because Rhino is using a different geometry modeling kernel that we develop and maintain ourselves. In Rhino it is typically best to avoid surfaces with singularities; these may give problems in other commands as well (like, see what happens when you boole…

Rhino WIP Feature: FilletSrf improvements

Serengeti (Rhino WIP)

brian (Brian Gillespie) July 8, 2025, 9:57pm 31

RH-87998 is fixed in Rhino WIP

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Rhino WIP Feature: FilletSrf improvements

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