Hello Forum, I often have to create bespoke shaped stoneworks, granite, sandstones etc etc. So yes another filleting question. What would be the best way to fillet say 10mm bullnose on the stone file attached? I have duplicated the edges the on the blue layer which I would like to round off with a nice fillet, or bullnose as we call them. Looking for suggestions of the right tools and workflow to achieve a nice looking result, tia
Edges To Fillet Milezee.3dm (493.3 KB)
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FilletEdge command
Set NextRadius=10
Select all the edges to be filleted.
Enter
Edges To Fillet Milezee DC01.3dm (2.1 MB)
Filleting multiple edges at the same time results in ball (spherical) fillets at the corners. If mitered corners are desired fillet each edge separately.
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Hi David @davidcockey , thanks for chipping in, I think I showed that slightly wrong, it does work when you select all those edges I’d highlighted, its more an issue when its just 3 or 4 edges when I get the fail ! Screenshot attached and file too, I appreciate your reply in that 1st instance, I’m trying to get a workflow that will work when objects like these crop up, once again many thanks
Edges To Fillet Milezee DC01.3dm (613.4 KB)
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That seems to have worked ok here -
Did I get the right edges?
-Pascal
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Hi Pascal @pascal you did put the right edges on, but my mistake, I highlighted too many, see my next post, its the old fillet edge where 3 lines meet failing, thank you for looking into this
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@milezee @pascal I was able to have FilletEdge fail when I selected only the two edges which meet at an acute angle.
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Yep, no way to jump across that middle face in the current way of things - you need hand building, so to speak, with FilletSrf to get that missing fillet:
and then a tiny slice of a sphere to fill in:
Then trimming…
Edges To Fillet MilezeeFilletSrfs.3dm (450.4 KB)
-Pascal
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@davidcockey @pascal yep, if you pick all edges works like a dream, if you choose 3/4 as highlighted in screenshot fails miserably, what would you recommend best workaround or workflow ?
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The four edge case works fine as far as I ca see - if you leave out the vertical edge, that does not build the corner correctly.
With the vertical edge included, there is the sphere on the corner and that seems to help the whole thing stick together - Rhino knows what to do to jump across the point of the triangular face.
-Pascal
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Hi @pascal if I just wanted the top3 edges to fillet what would be the best approach ?
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Hello- from what I can see, the way outlined a few posts up - using FilletSrf to fill in the missing pieces.
-Pascal
It’s hard to see images better when you can’t click them and zoom into them.
I’m not sure how some of you post images that don’t allow that, but as a user of this forum I prefer the latter.
surely this should just work, I’m not a maths or coding person, just your typical end user, a 3D Designer, I can’t even get this to work if I pick the 3 top edges, and the one vertical edge ?
Hello- if you select all four converging edges, that works here;
it you leave one out, you run into problems.
Hi @pascal , thanks for joining the post, but I only need to fillet the top 3 edges, its confusing why it just fails, and what is the best workaround to solve this ? @jeremy5 has opened another post on the topic too, thanks for any input 
Hello - see my post here
-Pasca;
hi @pascal unfortunately I still can’t get that to work. Am I supposed to be trimming the main red surfaces with the blue and white fillets ? If I try and trim them, well it doesn’t work, I do appreciate you trying to assist here, its not a situation I come across a lot so a learning curve for me for these more advanced surface modelling issues
Hello- I underastand this is a pain but there will be situations like this for the forseeable future -
the problem is here:
the missing link is the fillet between these two surfaces:
if you FilletSrf for that, you have most of what you need:
You can trim the fillet surfaces with isocurves at the intersections of the edges:
Which leaves you with the tiny slice to fill. This slice is a sphere.
which can be trimmed with the edges of the fillets:
-Pascal
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Or you can, in this case, use the intersection of each long fillet with the short fillet. That is good enough to close the polysurface without the faff of the sphere.
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thanks Pascal, makes more sense now, think I’ve got it, or good enough for my needs anyways, fingers crossed for future improvements’ to these tricky little filleting issues