Fillet Edge or Corner or Srf which is best for this?

Hi,
V5
I have tried FilletEdge, Fillet Corner and FilletSrf.
Fillet Edge must not have a radii larger than that of the curve being filleted, well this is 0.15 and even 0.03 fails.

FilletCorner just doesnt happen.

FilletSrf baffles me, I need to know more of how to use it, on a booleaned union object.

I do youtube search and nothing out there with commentary or an accent in english .

I google Vimeo FilletSrf and nothing found.

fillet pnt03 fails.3dm (829.2 KB)

Is FilletStf the answer here and where are there any vids doing inward facing areas, all I find is outer edges.

Anything to go through exactly how to use FilletSrf would be most welcome, in english !

Cheers

Steve

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FilletCorner is for filleting planar lines and curves, not surfaces.

When you are using FilletEdge you are filleting two surfaces of a polysurface. While the shared edge can be considered to be a curve, FilletEdge is filleting surfaces, not a curve. This is fundamental. Any attempt to understand filleting surfaces as filleting a curve will not be helpful.
The geometry of circular arc fillets causes kinks in the fillet to occur where the radius of the intersection of the surfaces is less than the radius of the fillet. Kinks can also occur in other situations.

From Rhino V5 Help: Rhinoceros Help

Steps

  1. Select the first surface.

  2. Click the surface at the side you want to keep after filleting.

Note: Component surfaces will be selected and unjoined from their polysurfaces.

  1. Component surfaces will be selected and unjoined from their polysurfaces.

  2. Select second surface.

  3. Click the surface at the side you want to keep after filleting.

Go to the Help link above for a brief video demonstrating how to use FilletSrf. There is also information about the command line options and brief videos showing how to use the options.

@Steve1 Rhino Help should be the first place you visit when you have a question about a command.

2 Likes

I strongly recommend you to try this plug-in:

To use the script, you have to do the following steps:

  1. Save the script in some folder where you will keep it forever. Note that if you move or delete that file, the script will no longer work.

  2. Copy the directory where the file is saved.

  3. Open Rhino, then choose which icon you want to customize and hold Shift, then click with the right mouse button. That opens the icon editor.

  4. Paste the following text inside the “Command” field:
    ! Selnone -Selname “check” Pause Delete
    _-RunPythonScript “D:\YourDirectory\FilsrfEX.py”

Replace “YourDirectory” with your own directory which you already copied in step #2.
For example, my full path is: _-RunPythonScript “D:\PROGRAMI\Rhinoceros 7\Добавки\Chain surface fillet\FilsrfEX.py”

  1. Press the “OK” button to confirm the changes and close the icon editor.
2 Likes

Hi,
I need to see a vid where as in my items, such as :-


where the next surface to select for the fillet had vanished in the previous pick.
How one progresses along an edge which has a number of surfaces making it up, and getting a fillet to form .

The help vid shows the most simple item, with no need to select the next two surfaces to progress the fillet.

It doesnt show how to deal with anything beyond uber simple.

Has asnyone done a video with english spoken, on how to work ones way along an inward edge and what settings to use ?

I need to see videos then I can understand.

again how to fill out the two surfaces in this.
curving diminishing fillet2
fillet issues.3dm (762.1 KB)

perhaps a command called Cobweb !

Cheers

Steve

1 Like

Hi Bobi,
looks like its what we allways should have had.
Will it work in V5 ?
has that video any sound ?

I recognise my wingnut in that, which was giving all sorts of artefacts with standard fillet commands.

Steve

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I noticed that your 3d model has plenty of co-planar surfaces. You can easily merge them together with the ! _MergeAllFaces command.

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Hi Bobi, thanks, I had quickly unioned it for the post, I had been told dont mergeAllfaces by someone and again I am confused over things.

So to use FilletSrf one ,must MergeAllFaces, is that so ?

and to use FilletEdge, dont MergeAllFaces ?

or whats the rule ?

and what if one wishes to use both FilletEdge and FilletSrf and also the Python Script ?

to Merge or not to Merge ?

Steve

1 Like

I use Rhino 7 and have no idea if this plug-in will work with Rhino 5, but you can give it a quick try. :slight_smile:

Mu video has no sound, but I made sure that it’s easy to follow, this is why I click slowly on the icons.

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Merging co-planar faces heavily reduces the chance to create invalid geometry or a failed fillet, offset etc.

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So MergeFaces after a boolean Union is good for all things, whether one os using FilletSrf or FilletEdge or VariableFilletSrf or Variable BlendSrf or your python tool, am I right ?

I do so and it fails on areas yet those surfaces were all cut with the same cutter (boolean Difference)

Why with same surfaces as such it failed ?

and will that Python tool do a cobweb type fillet where it wont be a set radius, but an arcing cobweb, as per my mockup ?

or a variable radius suitable for each moment it progresses along the two curves . It doesnt have to have the quad of the arc running along the two surface outer edges, impossible where one surface is 3 units wide and the other 10.

Can someone show that with a fillet as per my mockup. prove its possible

fillet issues.3dm (762.1 KB)

Cheers

Steve

1 Like

I could make one that’s at least an hour long if you’d like :joy:

lol that would be awesome!

When one comes to have to fillet things and its the end of a weeks of work, one hopes for a 10 min vid as time is tight.
could you shorten it ?
does it take 1 hr to do a variable fillet ?

chapter it up otherwise ?

but to see an english spoken vid on the mysteries of filleting along an inward edge with more than one surface involved , would be awesome.

…edit addition…
I now have a thread purely for videos, so please do one and be the first with a link !

Steve

1 Like