Heres one of those VSR multiblends

Sorry to bring this to the top of the pile again but I just don’t get it. Would it be possible for someone at McNeel to do a step by step?

@jim
at fillet of 1.2 the surface goes crazy… others seems ok.
do you might know why this happens?

edit:I meant 0.12
crossover_filletX_0.12.3dm (1.7 MB)

Rolling ball Fillets can only work when the surfaces being filleted have curvature large enough to support the fillet. Your picture shows an extreme example of what happens when you try to use a too large radius. A radius of 1.2 is pretty big. The fillet size in the original file was 0.125.

@jim
sorry, I meant 0.12.
(updated attached file.)

@tone,

(not from mcneel… but…)
I tried to recreate the steps… when doing FIN, I had to cut the
large surface with isocurve, wasn’t sure how make a fin not go all the way around.

Attached is the first step, getting the radius of the edge to extend.
others are explained in the file.
Hope it helps, and hope it’s correct…

crossover fillet_stepbystep.3dm (1.6 MB)

Thanks Toshiaki_Takano
This looks a big help.

I joined the existing fillets to the main surface. That left just the open edge to use for Fin. It was a clean curve so I used it. Later
I exploded everything to add color to the surfaces for identification.

If I were doing this from scratch I would use blend curve and then check with pull and CrvDeviation to see if it was within tolerance of the surface.

By the way, there are 2 ways to do this crossover. Enclosed is the other one:

crossover_filletX3.3dm (180.5 KB)

Got it, thanks!
& thanks again for the sample file.

Rhino is just trying to help you express yourself artistically.

-Pascal

12 Likes

Hilarious. 3D Nerd humor!

creative software indeed

haha
jeez
louise