Hi Olga, also I don't understand what you are doing differently between the first file you posted and your second one.

It looks like the first 3DM file that you posted seems to have the side profile you want, when I open your attachement 1626_RainCabRing2.3dm, I see this:




That seems to have the side profile you want, and it also has a hole in it for the finger already, so isn't that the shape that you are talking about in your later message?

- Michael

Hi Olga, I guess I see that it is not quite right in this area:



But it looks really close in other areas.

I would think that you would use the same technique you used in this model, but put some additional profiles but try to make some adjustments.

Terminating the curve structure at the top should help to avoid the upper part kind of bulging out.

For example, instead of having the rails continue, cut them to make them stop at this location:



If I knew more about how you constructed this model it would make it easier to help.

Maybe I don't understand, but it looks like this is already close to what you are asking for, so I'd think you would want to use the same method you did here but make some adjustments.

- Michael

Hi Olga,

Maybe try this version & see if it better suits your needs?
Combination of Network, Sweep & Trim

regards Colin

Hi All,
I had a go at this and took a different approach, I not sure about the proportions, it's the quickest and easiest way I could think of, jewellery isn't really my thing.
Hope it helps.

Patience needed, it's a pretty big file.


Download link: http://cid-30cffdfa97399495.skydrive.live.com/browse.aspx/.Public

-

Hi Olga,

Here is my try.
I didn't get a solution for the top part,but i hope it will help you.

Here's mine. I didnt get the top right either. Forgot to sonsider this area in the initial creating phase. I suppose I could revisit the beging and try to start all over :O

Well THAT was an utter failure!!!!! :O

I just reviewed it an switched to front view. Oooops.

Here I reworked it to what I think is a ring, Though since I reworked the buggered up file I posted, I lost some mass around the lower portions. I believe this is the shape in the picture though....I suppose I may revisit this after a few beers tonight to see if I can get it right. (Seems I always miss some "very small insignificant" design detail like the "FINGER HOLE")

Ok, 1 beer and it looks a bit better!

Here's my approach.
The main surface is a network between the top ellipse and the four side profiles.
Then it's trimmed with the two side arcs to make the finger hole.
The edges are blended together using the 3 small arcs as profiles to ensure continuity. Notice that in order to draw these 3 arcs I used 3 pairs of lines perpendicular to the side edges and then I blended them with G2 continuity.

The file contains all the curves used as well as the final shape.
Cheers
Dan

Hi Daniele,

Good idea :)

Nice work Guys!
Very educational for all, love seeing the different approaches on this, we should do it more often.

Cheers

Cant let it go for some reason. Here's a shot at a different method I tried to think about. Legend included.