Torus cut by Toroidal Helices

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 From:  TOM (SIRTOM)
8567.1 
Hi.

I want to cut a Torus (Ring) by a set of two Toroidal Helices to get two
single UNSEGMENTED surfaces.

Problem is when I trim the torus with the Helices the sufrfaces are
divided in segments.

Is there a way to trim in way to get a surface which is not split into segments ?
(image attached showing segments)



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 From:  bemfarmer
8567.2 In reply to 8567.1 
I think not.
But just turn off edges under Types.
Join the segments.
- Brian
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 From:  TOM (SIRTOM)
8567.3 
Thanks Brian.

I now used another way to get unsegmented surface than trimming byusing the toroidal helices as sweeps.

So segmented surfaces after trimming cabt be avoided at all ?
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 From:  bemfarmer
8567.4 In reply to 8567.3 
I'd rely on Michaels response.

I think that since curves have start/end points, surfaces of revolution end up with a seam/edge somewhere...(?)

- Brian
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 From:  Michael Gibson
8567.5 In reply to 8567.1 
Hi Tom,

> Is there a way to trim in way to get a surface which is not split into segments ?
> (image attached showing segments)

Well when you have a closed surface it's going to have a "seam edge" and if you do a trim that crosses the seam edge it will form 2 faces like this:





The only way to avoid that is to not do a trim that crosses a seam, for example with the cylinder above you could rotate it around the cylinder's axis direction so that the trim was not going through the seam. So you'd do trim in a few different passes with different seam configurations rather than just one single trim all at once to avoid generating multiple faces.

- Michael

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 From:  TOM (SIRTOM)
8567.6 In reply to 8567.5 
Very helpful information - thank you Michael !
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