Grasshopper

algorithmic modeling for Rhino

Hello, I'm wanting to experiment with springs in kangaroo.  The manual happens to briefly discuss this, and even mentions Hook's law.

So, where are the spring components?

This should be more straight forward.

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If you are using 0.099, the spring component is called SpringsFromLine and has a picture of a coil spring as an icon.

In 2.0 onwards, this is replaced by the Length goal, which is a linearly elastic 1D finite element following Hooke's law.

Daniel

Please, look if I did the correct way...a comparation with sprigs force and length with the same curve...One is blue and the other is read (negative). I use the old Kangaroo with the new. 

Thanx

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Hi Art Agent,

Yes - everything looks good here, nice comparison.

By the way - the reason for the slight difference between the results is due to the anchors in Kangaroo2 being treated as goals with a default weighting of 1000. If you do want to fix the anchors absolutely, you can set their weights to 1e+99

Looks more complex than I would imagine.  How would I utilize this with a coil spring?

I'm not sure how your file functions.  Can we derive something simple with a coil spring?

I'm using version 2.02.

I do see: "length(line)", and "plastic length".  I'm still learning the terminology quite a bit.  I'm assuming these are kangaroo components under the goals section?

I will play around with these to see if I can make sense of it.  

Thank you Daniel.  I'm thrilled to begin learning these new tools/plugins.

Erik

I find one tutorial that is good for you to understand Spring Force...

It is only point, lines and data...

http://designreform.net/learning/2012/08/19/kangaroo-spring-force

I´ll do a Foucault Pendulum...and I was studied these ...spring + gravity

:)

I´m in a  cool workshop  in Rio and everybody is using Kangaroo and Grasshopper

https://www.facebook.com/laboratoriodemodelos3d

Hey! Cool video!  Thanks!  I'm going to be studying it very closely.  Thank you Art Agent :)

Hello, I've studied that video very much.  I'm very grateful for it.  I've been able to move forward with a functional file, and would like to share my current permutation, here.

Enjoy!

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Hi Erik

Cool you get it

:)

See these pendulum only with 2 points...it is very simple

one is fixed the other you move it and it is working

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haha, it took me a few minutes, but I finally got the pendulum to swing! :)

it's pretty cool!  

Lander,

Take a look in these in this  spring´s jump of Kangaroo over some curves and points...

https://www.youtube.com/watch?v=CgGuX3ln8a4

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