Full Version: Flow - again!

Hey All.

So I'm trying to create a recessed design in the shank of a ring. I'd like it to run from the top shoulder of the shank all the way to the base. I tried drawing the objects to the approximate length of half the shank but that didn't work so I scaled it down considerably but am still not getting the desired result.






Could someone please weigh in on what I'm doing wrong?
Many thanks in advance.
Gunter

Attachments:
Floating collet ring.3dm

Image Attachments:
Screenshot 2024-07-21 at 11.30.30.png  Screenshot 2024-07-21 at 11.30.57.png 

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Hi Gunter,
your issue is the seam.
You can move the seam to the inside by rotating the ovals before or after sweeping.
To generate your base surface get the calc lengths of the top and bottom ovals and sweep curve length and produce the tapered surface this gives.
You can then produce the cutouts on this surface.
Hope this helps.
Barry

Image Attachments:
Screenshot (42).png 

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Barry, thank you very much for your reply.

I have a couple of questions if I may:

1. You mention 'move the seam to the inside by rotating' - could I ask, the inside of what and how do I rotate them in that plane?

2. To generate your base surface get the calc lengths of the top and bottom ovals and sweep curve length. Is this the length you mean - see screenshot.

Many thanks in advance.
Gunter

Image Attachments:
Screenshot 2024-07-21 at 16.11.19.png  Screenshot 2024-07-21 at 16.11.19.png 

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Hi Gunter,
perhaps the attach photo may help.
Using approximate calculated lengths to form base surface mimics unwrapped swept surface.
Moving the seam by just rotating your ovals 180 degrees moves the seam to the inside.
Hope this helps.
Barry

Image Attachments:
Screenshot (43).png 

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Barry, this is super helpful, thank you so much, I now understand it!
Much appreciated!
Gunter

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Maybe another solution ;)

I don't how you have drawn your object

Here with the Blend
Like this you can test all generative curves

With your object
Extrude each oval (careful to kill the 2 curves and faces for have only edges!
Make the Blend : during it move the points where you want for move the seam!
Of course at the end kill the ovoïd cylinders! ;) (not shown here)

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Hi Pilou, this is great learning for me, thank you so much!
Gunter

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Hi there

You will get a much better flow if you reduce the surface area to flow onto , just using the outside half of the band

With a lot less distortion







cheers
shayne

Image Attachments:
2024.07.25-09.28.25-[3D].jpg  Screen Shot 07-25-24 at 09.30 AM.JPG 

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Hey Shayne, thank you so much, that makes absolute sense!
Gunter

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