Hello,

I am trying to create constaint on  an inflattable mesh by using a curve as a spring. I used the mesh collide  component in order to deform the mesh following the curve as a constraint but the mesh doesn't seem to recognize it. I am working on the file that originated from this discussion.
http://www.grasshopper3d.com/group/kangaroo/forum/topics/simulating...
Any help would be appreciated

Sandra

inflatetriangulatedmesh_test_spring.ghx

inflateatriangulatedmesh_test_spring.3dm

Hi Daniel,

i'm having an error using KingKong plug-in, this error come from the kangaroo cluster, I think it's for the change of the hinge component in the last update of kangaroo, i'm wondering if someone can share the password for update the cluster?¿ or update the cluster and share again for continue using this nice plug-in?¿

http://www.grasshopper3d.com/group/kingkong/forum/topics/hinge-erro...

Thanks

Hello Daniel,

I am trying to inflate 4 balloons within a box which itself also inflates. I would like to constraint the balloons inside the box but it is not working. The external surface of the inflatable object collide with the exterior surface of other objects but not the exterior with the interior. Is there something wrong with my definition or there is another way to do it?

Any help on this matter would be really appreciated since it is part of my thesis project!!

Thanks!!!! :) mesh_sphere_balloon4.gh

Quick question about the "new" Zombie component. How is Zombie Kangaroo different from just using a Sequence component to control Kangaroo Reset?

Question about Kangaroo. It is possible to simulate a balloon filled with water in air, on a horizontal plane , self-weight forces? Thanks ...

Boxes collide in limited space.

I need to make a collision between five boxes in  limited boundaries  with allowance of changing in size and dimensions for each box by 80 percent. Any Ideas or even sample file close to this issue.

Hi Everyone,

I'm working on/ studying reciprocal structures. I'm trying to develop this script to fabricate reciprocal stick models using no connection method, just the sticks/pipes resting on each other.

The problem is when I run the Kangaroo engine, there are some issues with the layering of the pipes. As you can see in the image, the green pipe is supported, however the red pipe isn't. This would be okay if I was planning to implement some sort of connection, but because I am working on creating a structure where they just rest on each other, this is no good. 

Any help or insight on this would be great,

thanks!!!

File>>> dynamic%20reciprocal%20cleanup.gh

Can Galapagos wait for the final result of kangaroo after making a slider change?

I get this error from the solver, guess it something net frame something any idea on how to solve it ?

Solution exception:Method not found: 'Int32 System.Environment.get_CurrentManagedThreadId()'.

@Juan - You can use the Length component, with the target length set to zero for the equivalent of the old springs component for tensile form-finding. The next release will also contain a membrane element.

That are amazing news! Thank you for your work Daniel, kangaroo already allowed us to create immaculate tensile structures...

Hello Daniel,

I have used your origami cluster for a simple origami. However, my mesh keeps on rotating once Kangaroo Physics is active, unlike your example. Is there as solution please?

Regards,

AB

Hello Daniel,

I'm new at Kangaroo and I've a problem whenever i try to run one of the example files downloaded with kangaroo I get the error shown in the attached screenshot, can you help me with this please?

Hi All, I have a problem with a surface I'm designing (see screenshot attached). Since the surface height changes, the height subdivisions (V coordinate) of the diamonds make the diamonds irregular. I want the diamonds to be as similar as possible in size.

Any help/ideas would be appreciated! Thanks!!

origami%20simulation.3dmorigami%20simulation.gh

Hi Daneil, I use your definition and add string force to it because i want to make the folding surface into a cylinder shape.But the shape doesn't look like so round , so i want to add one more string force after the surface has already been folded, but it didn't work, the error message is solution exception.

Hope someone could help me !!!

origami%20simulation.3dm

Hi All, I got a new computer and tried installing kangaroo but the tab does not show up in gh. I"ve tried placing the files in this directory:

C:\Program Files\Common Files\McNeel\Rhinoceros\5.0\Plug-ins\Grasshopper (b45a29b1-4343-4035-989e-044e8580d9cf)\0.9.76.0\Components

I've also tried placing the files in this directory:

C:\Users\MYNAME\AppData\Roaming\Grasshopper\Libraries

I"ve checked the security settings on the files. They are not blocked. Any ideas how I can resolve this?

Cheers,

The issue below was resolved once i turned off the custom ribbon layout i created.

Hello, wondering if kangaroo has a solution for a conical mesh..or an idea on how to create one.

hi. I just started to work with kangaroo. I wondering do only I have problem with extracting this examples or there is a problem with them?http://www.grasshopper3d.com/group/kangaroo/page/

example-files

Hi Daniel
I am excited by your kangaroo 2, thank you.
Trying to define goals to infate a mesh,  I came across your Vertex_areas_comparison.gh.
I added a 4. way witch uses the crossproduct which gives me the force_vector as well.
With that I defined an InflateMesh goal, which gives me good results for regular meshes.
The idea is just moving the face_vertices by the force_vector and let the solver add the vectors at a vertex.
Could you please have a look and tell me if I correctly handle that goals.
That would be a great help for further experiments.
Thanks again!

Vertex_areas_comparison_XProd3D.gh
151220_MeshInflate_VB_triags_XProd.gh

Daniel,

Is there a way to measure kinetic energy of a system in Kangaroo 2 as in Kangaroo 1? Just trying to figure out if a system has reached equilibrium, keep up the great work.

come here

image sampler+circle packing kangaroo
image sampler+circle packing kangaroo2

hi this is matthew and i just got into grasshopper learning for my design course and i have been experimenting with kangaroo. currently i want to make a shape such like this but i don`t know where to start can someone who knows how to do this please give me some ideas. thank you all for reading this. http://theverymany.com/propos-specus/12-tree-house/

Dear all

How to building model like the videos?

https://vimeo.com/80136908

I try again and again but still without success.

I don't know how to lock here

My file Kangaroo%20Bend.gh

thanks.

Hi friends
How can I learn kangaroo?
Do you know any tutorial?
I look for a lot but I cant find any thing.

Hi everyone,

I am currently working with Kangaroo simulating fabric relaxation through surface springs derived from mesh edges.

I am wanting to add additional springs to the surface through drawing curves onto the surface. These springs will have different rest lengths etc. to the mesh edge springs, therefore causing the fabric to relax non-uniformly. (similar to edge cables, but they run through the fabric rather than around the perimeter)

I am having a lot of trouble adding these springs and my deadline has really crept up.

Fabric%20Relaxation.gh

Below is an attempt to illustrate... Blue lines= Springs to add to mesh (Red).

I have attached the GH file if you can, please please help.

Thanks

https://www.youtube.com/watch?v=A8hpsJEOTm8

Tensile with Kangaroo2

Does anyone have any ideas for how to create a vortex force in Kangaroo2 similar to the component in K1?

in kangaroo 2 anyone know how to recreate "geometry in" and "geometry out" from older kangaroo solver?. Its possible?

example: when remove duplicates lines/points its use for goals, but then you need to reconstruct original geometry.

Manuel, look for the "Show" component.

I have tried to download some definitions in the example page you linked, but when I open them I always miss some nodes because I have a newer version of GH and Kangaroo and the definition won't work (I have both kangaroo physics and kangaroo 2 but it won't work anyway).
For example when I open this one I will see this algorithm, what's missing??
Can anyone with an older version of GH can link me a screenshot of the correct algorithm?

Origami_example.gh

Hi Riccardo,

you shouldm install weavebird.

I am working in a nodes project for 3d printed  structures and its difficult find a smooth transition between the branch and the joint with springs force .

I am trying to improve the tangency between  the the final mesh at the anchorpoints  and each branch direcction rest lenght in springs force.

At the same time avoid the mesh to go in a convex direcction and have a smooth transition.

How we can find a definition  , where the are diffents settings from  rest lenght and stiffness to find a correct mesh  ? i tried to apply unary force in some points to the mesh in every anchorpoint without success

this is de example that i work with 

this is what i get normally , with rest lenght and stiffness settings  

this is my goal , where there are a smooth transition in every branch direccion 

thanks !!!!

i leave here the definition , and rhino file .

( of course i used Meshmachine settings

28-11-16.3dm

13-julio-16.3.gh )

i have a new examples with kangaroo 2 ( soapfil , anchor and tangential smooth ) and laplacian .

in kangaroo 2 is easy to control a mesh tension but is more difficult to have anchorpoints control in the naked edges .

this is the example with kangaroo 2 

this is a example with laplacian .

For produce a differents solutions than "Minimal surface" with kangaroo 2 or  solutions with "Springs" from kangaroo we need to find a specific force that push the Mesh vertex points  to the fix anchor points in the naked edges .

thanks 

13-julio-16.3dm

1-12-16.CORRECTO%202%20_springs.gh

Hello everybody,  few weeks ago I've seen some attempt to reorganize grasshopper code into a readable clean manner using kangaroo, like transforming spaghetti code into clean linear code, but I just can't find it anymore. Any info about this? Thanks in advance.

kangaroo(rain water flow simulations)

http://www.grasshopper3d.com/photo/muscat-touristy-restaurants-by-p...

im trying to use the grab component without big success  https://vimeo.com/118721449 . following the video (and also another example file > http://www.grasshopper3d.com/video/kangaroo2-planar-quad-mesh-editing ... not working as well)

help :)

Hi AJ, can you describe in what way the grab component is not working? The more detail you can provide, the more help you'll get! What version of Kangaroo are you using? What error messages (if any) are you getting when trying to use the grab component?

Hi everyone, I've a simple question. Is there an equival component for PowerLaw in Kangaroo 2?

Hi all, where does Kangaroo define literally the mass of springs? The thing is, when using Kangaroo, there is no mass input, and  if I applied force=0 then displaced the support, why the structure vibrates when there is no mass defined anywhere?

The second thing is that, when I applied very high value of stiffness, with proper support conditions, the elements fly off to there screen (displacement=infinity=null), even if there is no force applied, anyone know why?

help :)

Hi Daniel,

Is the version of Kangaroo for OSX different than Windows?

I'm looking for the SpringsFromMesh component I've seen in a tutorial, but I can't find it anywhere.

Any help would be greatly appreciated!

Hi all, How can I model a shell in Kangaroo2 ? The triangular shell element from Kangaroo1 disappeared?

Hi all, I'm a really new grasshopper user, These days I have learned how to use Kangaroo2 to solve a problem.

But I have some trouble with the component "PolygonArea".