form finding kangaroo-control spring tensions

Replies to This Discussion

Permalink Reply by Daniel Piker on March 10, 2014 at 6:21am

Hi jm,

In that photo you have a sheet material (felt?), which resists both shear and bending, and just a grid of springs will not model this behaviour.

So I suggest instead using the 'shell' component.

I'll post an example in a minute.

Daniel

Permalink Reply by Daniel Piker on March 10, 2014 at 8:07am

Permalink Reply by Daniel Piker on March 10, 2014 at 8:08am

Here's the definition

Attachments:

• feltshell.gh, 32 KB

Permalink Reply by jnm on March 11, 2014 at 6:06pm

Dear Daniel, thank you very much for your advice and the definition. I still have some questions (it s my first time using Kangaroo and my experience with GH is limited too):

1.what kind of tessellation did you use?

2.how is it possible to make the surface smoother?

3. how can i come closer to the effect of the photo? i still miss two ripples (look at the pictures)

Once again thank you in advance!

Attachments:

• dome_from scratch_03.gh, 36 KB

Permalink Reply by ng5 Alex on March 17, 2014 at 9:56am

Hello

you can use weaverbird (http://www.grasshopper3d.com/group/weaverbird) to make the resulting mesh smoother after the simulation.(or the initial one before passing it to kangaroo but that will definitely not help the speed of the simulation)

Permalink Reply by jnm on March 18, 2014 at 2:13am

thx ng5! i ll test it

Permalink Reply by MAURO on April 4, 2016 at 6:30am

Hi evereybody,

I am new to kangaroo in grasshopper, and I was wondering if it was possible to create wrinkle on a cylinder by bending.

Here is an exemple of the wrinkle I would love to do.

I thought that It could be doable starting from a mesh of a cylindre and create some constrain in Kangaroo.

Could someone help me out ?
Thank you very much

Permalink Reply by Tamas Totto Ratkai on October 6, 2017 at 7:20am

Hi Daniel,

thanks for the definition. I have opened it today (GH version 9.0076) unfortunately the Point component is empty.

Can you tell me what are those points exactly?

thnakyou

Permalink Reply by Daniel Piker on October 6, 2017 at 7:56am

I've added the points in the old definition, but also attached here an example showing how to do this in K2

Attachments:

• feltshell_kangaroo2.gh, 21 KB
• feltshell2.gh, 28 KB

Permalink Reply by Tamas Totto Ratkai on October 27, 2017 at 6:06am

thank you Daniel! this is awesome!