algorithmic modeling for Rhino

karamba - parametric structural analysis

karamba is an interactive structural analysis program at the interface between architecture, design and engineering. It closes the gap between parametric design and statical assessment.


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Comment by djordje on October 11, 2012 at 8:45am

Yes I would like to stay with that version.
I am just not sure I understood you - I simply need to reinstall the current 0.9.084 version, and install again the same version, but downloaded from mentioned sites?
After six months, I need to do the same thing?

Thank you.

Comment by Karamba3D on October 11, 2012 at 8:33am

Dear Djordje,

the functionality of Karamba that is free will remain free. There is a time-limit of half a year on the releases to limit the number of different versions and make support easier. You can download the karambaCOLLECTION 0.9.084 from e.g. or food4Rhino if you want to stay with that version.



Comment by djordje on October 11, 2012 at 8:20am

I have been using your 0.9.084 free plugin with no problem, for the last couple of months. But for the last few days, I am getting an error message at "Assemble" component:

Error: Solution exception: Your Karamba license is not valid

Does this mean that your free karamba plugins can not be used anymore?

Thank you.

Comment by Robert Vier on July 12, 2012 at 2:43am

i guess you messed up something with the order of the lines that do not correspond to your list of radia. why not remap the normal force in each member and take this number as the radius (which would also be structurally more reasonable)?

avoiding list-mismatches after analysis can easily be avoided by using the 'disassemble model' component to take the list beams or beam-axes from there.

best robert

Comment by Robert Vier on July 12, 2012 at 2:39am

if you post your definition i could have a quick look at it if you want.

Comment by Steven on July 12, 2012 at 2:37am

ok, constraining the top in x+y helps, it was spreading out side-ways. That doesn't completely explain why the axial forces were so high...

Comment by Karamba3D on July 12, 2012 at 2:20am

My first guess would be that you applied the beam loads in local beam direction. Did you check in which direction the load symbols point?



Comment by Steven on July 11, 2012 at 11:16pm

Hi, sorry about my late reply, I am having more problems with the results from Karamba. It is similar to the previous issues, so I thought I'd post here.

I have a simply, symmetrical tower, which I am analysing to find the axial forces. I am then applying a pipe with varying radius based on the axial force in each member. However, the results do not seem correct. At the top there are 12 members in total, which have forces directed into them. At the base, there are 12 members attached to supports. Despite this symmetry, the members at the top have axial forces of about -12.6 and the members at the bottom have only about -4. I notice also, that changing the direction of the lines in Rhino affects the result, which is strange. See attached images.

Comment by Karamba3D on June 14, 2012 at 3:20am

Hi Kane,

you can adapt the number format of the Legend by changing the corresponding entry ('legend_utilization_number_fmt') in the 'karamba.ini'-file. This file is situated in the folder  '..\Grasshopper\Karamba'.



Comment by Kane Borg on June 13, 2012 at 3:33pm

Hi there, I am trying out some basic applications of Karamba and i came across this problem;

In what way I can utilize the information obtained from the Legend (such as Utilization of section) in decimal format instead of Percentage, so as to be able to utilize the info to continue my parametric definition or for iteration. Is there a way or can it just be edited through the tool?

Thank you





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