Rhino surface help


HI Everyone:

Can someone teach me how to variable fillet the two surfaces in the attached file. I’m trying to do a 0.125" fillet at one end then blend the 2 surfaces at the other. I’m not sure how to make this happen though.

Any help would be appreciated.



Here’s the file.

(Pascal Golay) #3

Hi Don - do you need a precise .125 round fillet there, to meet some existing stuff? Or is a smooth but about .125 radius OK?



HI Pascal.

No, It doesn’t have to be exactly 0.125. Close is good enough.


(Pascal Golay) #5

Hi Don - I don’t know if this is something like what you need?
Rhino pipe help_Could be.3dm (301.0 KB)



Very close. How did you do that?


(Pascal Golay) #7

Hi Don - I’ll see if I can make a coherent blow-by-blow… hold on a bit.

@Don_Sharp - see the attached - I now see your file is V5 and so you don’t have access to the V6 matchSrf options, which are very handy here.

Rhino pipe help_Steps.3dm (934.7 KB)

I see one edge is not well matched - the problem is the green surface is a little too sparsely populated with control points to get a good match - by adding knots (InsertKnot) in the V (short) direction, with the Automatic option, then matchSrf one last time, you can get a good match.