Mind you, if you’re doing this thing in Alias or ICEM, and you use a chordal fillet with a low form factor, you don’t get that “tangency/curvature shadow” ; )
I would say, whether in Rhino or else, if it looks good and CNCs good - it is good : )
Alex, relax regarding the notorious “max curvature dev = 1.0” emperor, for he is plain naked : D
Words to live by!
Do we need to have the same degree on surfaces which are going to be blended or filleted?
As long as the CP structure of the surfaces is good, so the fillet has a high chance of being good, too, it doesn’t matter.
What is “chordal fillet with a low form factor”?
It attempts to maintain the same distance between its contact boundaries, even when the normals at the common boundary have a varying angle. See the various options. A smaller/larger form factor means the fillet bends more sharply/softly.
I don’t know why you would say that. Any CAD application that makes rolling ball fillets should not have any problem with this.
That includes Rhino RollingBallFillets.3dm (139.1 KB)
The advantage of rolling ball solutions is that they will have better tangent continuity than the blend solutions. That means if you are making complicated models where many fillets need to overlap you are not going to run into problems due to the poor tangent continuity of the first layer of fillets when you try to make another fillet that overlaps the first. .
No, If you look at Zebra continuity, you will find out there is not a good reflection. Your fillets are G1 not G2.
What do you mean by “worse tangent continuity”?
Why would a blend suface created with BlendSrf and G1 or G2 continuity have worse tangent continuity than the results of a rolling ball fillet created with FilletSrf or FilletEdge?
Yes they are G1. And good quality G! continuity in fillets is generally more advantageous. That is why if you look at all the parts that go into an automobile you will find that most of the fillets on those parts are G1 surfaces. That’s because they are more accurate and robust than G2 blends.
A blendsrf often does not even have good internal continuity.
The point I’m making is that the increased accuracy and robustness of rolling ball fillets allows for much more complex construction which can be built much more quickly and easily/
For instance, what if those surfaces were just the start of a more complex shape?. Say zomething like this moreFillets.3dm (375.1 KB)
You are going to have a heck of a time making all those fillets with blendsrf, but its a fairly simple and easy process with filletSrf. And the reason you will find doing the same thing with blends arduous is because of the poor continuity where the blends overlap.other blends.