Grasshopper

algorithmic modeling for Rhino

Nick Cole
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Kangaroo catenary test
3 Replies

I'm fairly new to grasshopper so apologies if this is a rookie mistake! I've made a simple catenary model to test how Kangaroo applies forces and the effect of the different parameters and there is…Continue

Started this discussion. Last reply by Frank Tseng Jun 7, 2011.

Rhino crash with Kangaroo physics timer
2 Replies

I've recently downloaded the latest version of Grasshopper and now when i try to connect a timer into Kangaroo physics Rhino crashes. It also crashes when i try to open any Kangaroo files that i have…Continue

Started this discussion. Last reply by David Rutten Dec 4, 2010.

 

Nick Cole's Page

Latest Activity

Nick Cole replied to sahar's discussion origami in the group Kangaroo
"I don't know anything about the Kangaroo folding component but that doesn't look to me like an origami folding pattern, which may explain why it doesn't work. Wrong number of fold lines at each vertex."
Apr 1
Wesley Moore replied to Nick Cole's discussion Self weight force in the group Kangaroo
"Hi Daniel, Were you able to work out a dynamic weight component? It seems perfect for what I'm doing currently:I'm taking this mobile definition you started…"
Oct 11, 2015
Nick Cole is attending Arthur Mamou-Mani's event
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Grasshopper London User Group Meeting at ARUP at ARUP

September 24, 2015 from 6pm to 8pm
Hello everyone!ARUP is hosting our next Grasshopper London User Group meeting on 24th SeptemberPlease make sure to RSVP on this page.The running order on the night will be:Toby Clark with an introduction to Arup parametric work (10 mins) and a brief description of Gifu Library by Toyo Ito.Paul Jeffries on…See More
Sep 20, 2015
Nick Cole replied to Jon's discussion material parameters for fabric in the group Kangaroo
"Shear stiffness! When your model deforms there is nothing preventing all the rectangles in the grid warping to form parallelograms. It is behaving like a chain net. You're trying to model a material that has resistance to this shear deformation…"
Apr 13, 2014
Daniel Piker replied to Nick Cole's discussion Self weight force in the group Kangaroo
"The cotangent method can actually be adjusted to work at boundaries (and Plankton could come in handy here - another RCD connection!), but I tend to agree that in most cases the barycentric version is probably good enough. Is this to combine with…"
Jan 24, 2014
Nick Cole replied to Nick Cole's discussion Self weight force in the group Kangaroo
"Daniel Thanks for the quick reply as normal. That's really helpful, thanks. As you say, it looks like triangulating the mesh and taking 1/3 of the area is probably the easiest in GH and is probably accurate enough for…"
Jan 23, 2014
Daniel Piker replied to Nick Cole's discussion Self weight force in the group Kangaroo
"Here's a definition showing how to calculate these area options in Grasshopper. I'll try and get a release with that dynamic weight component out soon."
Jan 23, 2014
Daniel Piker replied to Nick Cole's discussion Self weight force in the group Kangaroo
"Hi Nick, There are actually a few choices for how to calculate the area of a mesh which 'belongs' to a single vertex. The simplest is barycentric, where you take one third of the area of the surrounding triangles, and this is what the…"
Jan 23, 2014
Nick Cole added a discussion to the group Kangaroo
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Self weight force

DanielDo you have a component, or a simple work around for calculating the mesh area surrounding a node for easy selfweight calculation when form finding shells? I'm asuming it's pretty much the same as the 'inflate' code but would be applied based on a gravity vector rather than surface normals.  ThanksNickSee More
Jan 23, 2014
Nick Cole commented on Daniel Piker's video
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Wind test

"This looks very impressive. I'm imagining the possibilities of combining this wind force with Galapagos to find a building form to minimise overal wind loading (base shear) on a structure. Exciting stuff."
Jun 11, 2011
Nick Cole liked Daniel Piker's video
Jun 11, 2011
Nick Cole liked Andrew Heumann's video
May 11, 2011
Nick Cole replied to Jesper Hildebrandt Andersen's discussion What is wrong with this Kangaroo setup in the group Kangaroo
"I fixed the Kangaroo part of the model for you. - I exploded the polylines so that Kangaroo sees each of the line segments separately - I put it through a line component before the geometry input which seemed to keep the geometry output happy -…"
Apr 2, 2011
Nick Cole replied to Carlo Rousseeuw's discussion Kinectic arch design issues or kangaroo? in the group Kangaroo
"It would also be really interesting to understand the difference between the different solvers and the best ways to use each of them."
Mar 29, 2011
Nick Cole replied to Carlo Rousseeuw's discussion Kinectic arch design issues or kangaroo? in the group Kangaroo
"Sorry for the slow reply. It was an insanely busy week last week. - The main thing i did was flatten the Force Objects input. - There was also a Crv box that was messing up the input for the diagonals. Don't know why, but it wasn't…"
Mar 28, 2011
Nick Cole replied to Carlo Rousseeuw's discussion Kinectic arch design issues or kangaroo? in the group Kangaroo
"Fixed. I also added a force so that you can put some compression in the arch and see when it becomes unstable. Now you have an arch that can move the interesting question is what shape do you make it and how do you automate the actuatoors to get the…"
Mar 21, 2011

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