# Kangaroo

THIS FORUM IS NO LONGER ACTIVE. PLEASE POST ANY NEW QUESTIONS OR DISCUSSION ON:

https://discourse.mcneel.com/c/grasshopper/kangaroo

The discussions here are preserved for reference, but new questions posted here are likely to go unanswered.

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper.

• ### asymetric paper structure with opening

Hello everyone!I'm working on a form and have some problems finding a script that would work perfectly.

• ### Gyroid structure

Hey guysI'm trying to find a simple way to make gyroid structure by kangaroo, anybody know what's the best way?! I'll be happy if you share your related experiences with me, thanks! maybe…

• ### New origami example

Origami_simplified.ghThis example shows the use of the new user object for origami simulation.As input you provide a flat mesh of the folding pattern, curves to assign as either mountain or…

• ### Mesh Hinge Angle Constraint?

Hello everyone!I'm working on the starshade origami pattern and want to refine one last thing.I've set the hinge angles for the mountain and (-ve) valley folds (See pic 1) but I want to constrain the angles of the rest of the edges. (See pic 2)I want to do this so that they don't flap around almost…

• ### Controlling iterations in Kangaroo

Hello, first post.I've been trying to figure out  how to control the number of iterations Kangaroo performs. I want to point it at an array of meshes and do one at a time for 1000 iterations each, bake it out and go to the next.I've looked through the forum posts and google But I've found no way to…

• ### LenghtSnap to list of values

Hi Guys, With Kangaroo2 I'm looking for a way to apply a spring force where the rest length can be one of several values. Just like LengthSnap but with distinct values as opposed to multiples of a base value. Can anyone think of a solution?Simon

• ### Keyframe animation tests and poseable figure

As shown in the above video, I've been playing around with a very basic system for making keyframed animations from Kangaroo simulations.This is still just proof of concept stage - lots of issues to fix before it becomes very usable, but I'm posting the file here in case anyone wants to try it…

• ### Reciprocal force diagram

A simple definition showing the generation of a reciprocal force diagram for a compression only structure. When the forces are in equilibrium (ie the dynamic relaxation part has stopped moving), the vectors in this reciprocal diagram form closed polygons.Note that here the reciprocal diagram is…

• ### Envelop of lines network , mesh and funicular structures

After playing with Kangaroo on this discussion and as I like a lot Marc Fornes structures I wanted to go a bit further with Kangaroo and also making some mesh…

• ### New tutorial - Developable strips - Part 3

Following on from parts 1 & 2Once we have…