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 From:  renklint
2352.1 
Hi

trying to achieve a sop-film surface. Using 4 curves I can use sweep by selecting two curves across and the other two as rails.

But in the other example I don't know what to do. Any thoughts?

/Lars



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 From:  renklint
2352.2 In reply to 2352.1 
I think this is the closest I've come to the surface I'm looking for:




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 From:  renklint
2352.3 In reply to 2352.2 
Hmm, this works better - a sweep in 3 steps.







But it doesn't shell to well..







/Lars

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 From:  renklint
2352.4 In reply to 2352.3 
Any other ideas of what to do to get a smooth surface?

Maybe Michael can give us a big bowl with soap-water, then we could just dip these kind of wireframes in it and get a soap-film...

/Lars
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 From:  Michael Gibson
2352.5 In reply to 2352.4 
Hi Lars, probably your best bet for this is to use the "Patch" command in Rhino - it will kind of fit a single squishy surface through the curves that you pick.

It is not exactly the same as a true "minimal energy" surface like a soap bubble but it will probably get you the closest.

MoI does not have this particular tool yet, it probably will not be coming directly in MoI until MoI version 3.0 .

- Michael
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 From:  renklint
2352.6 In reply to 2352.5 
Thank you Michael,

you actually had a bucket of soap-water to throw in!
Worked great, took my curves from MoI, used the Patch command in Rhino, and the rest was MoI.

/Lars


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 From:  Michael Gibson
2352.7 In reply to 2352.6 
It's a cool result Lars!

- Michael
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 From:  Frenchy Pilou (PILOU)
2352.8 
Seems you can make that only inside Moi ;)
hum hum not so evident I have some seams and my circle is not enough big :D

EDITED: 23 Jan 2009 by PILOU

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 From:  renklint
2352.9 In reply to 2352.8 
Thank you Pilou!

It works great to divide the surface in 8 parts and sweep them separately. Didn't even think of that, I'm always afraid that there will be kinks between individual surfaces where they meet. But the way you've dividend it there's no risk for that. It would take some effort to adjust the curves so that the parts will meet in a nice way when you copy the whole thing.

Thanks again for showing me!

/Lars
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 From:  yannada
2352.10 In reply to 2352.9 
what's how Erwin Hauer is doing it...

EDITED: 17 Mar 2009 by YANNADA

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 From:  manz
2352.11 In reply to 2352.1 
Hi Lars,

I would build that interlinking surface slightly differently.

This is just a very quick example (took about 3 minutes to build)

Create a curve which I then rotated(copied) 90 degrees and mirrored.



One rail sweep to create surface. Then booleaned out 4 circles.



Shelled the surface.



Then made arrays.

EDITED: 3 Aug 2009 by MANZ

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 From:  renklint
2352.12 In reply to 2352.11 
Yannada - thanks for the link, I will sure check it out. Was inspired by Rinus Roelofs - http://www.rinusroelofs.nl/pr-c-holes/pr-c-holes-00.html

Manz - another possibility that I would've never thought of. I'll give it a try.

/Lars
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 From:  renklint
2352.13 In reply to 2352.12 
This was a nice experiment, I'll go on to try out the different suggestions you've given me, just a quick sketch of another one, not so smooth yet...

/Lars


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 From:  Frenchy Pilou (PILOU)
2352.14 In reply to 2352.11 
@Manz: Damned! That is "the solution" the more easy ! Bravo ! :D
I am so dumb to not have though to that :)

Very cool links!

EDITED: 24 Jan 2009 by PILOU

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 From:  manz
2352.15 In reply to 2352.14 
I decided to build that surface from a network (egg carton)



Create the surface.



boolean the holes, then copy and postion.



Add shell




There are some nice shapes shown on the link, I will have to play more.

EDITED: 3 Aug 2009 by MANZ

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 From:  renklint
2352.16 In reply to 2352.15 
Really nice, but now you have to relate how you go about in creating an egg carton surface.

/Lars
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 From:  manz
2352.17 In reply to 2352.16 
Create a curve, here I have used the "through points" curve to create a wavy curve using snaps.



Use that curve and create the square boundary, then select all 4 curve and select "network".



I have attached the curves which may better explain.

EDITED: 3 Aug 2009 by MANZ

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 From:  Frenchy Pilou (PILOU)
2352.18 In reply to 2352.17 
Maybe this link can interest you ;)
http://www.materialsystems.org/?page_id=161
Some amazing things anywhere in this site!
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 From:  manz
2352.19 In reply to 2352.18 
Hi Pilou,

I will have to make time to take a longer look at those images,.. some strange shapes indeed.

Thanks for the link.
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 From:  manz
2352.20 In reply to 2352.13 
Hi Lars,

I had a play with building the 3 surfaces interlocking. It did not come out exactly as planned, but was OK.


EDITED: 3 Aug 2009 by MANZ

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