Karamba3D

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Comment by marco on October 19, 2013 at 6:26am

Hi Clemens,

Thanks a lot for the input. I didn’t really know how to apply a weighting factor to mass and deflection so I only changed the loads in order to have the same amount and intensity in any case. This works fine when I only optimize the max. displacement although I’m not sure if the result is 100% correct. Could you please take a look at the attachment one more time and maybe give me another hint of how to apply the weighting factor? Thanks in advance.

Marco

diff_radius_scales_02.gh

Comment by Karamba3D on October 19, 2013 at 2:41am

Hi Marco,

on first inspection I think there are two possible reasons for the behavior of your structure:

• The value of the horizontal load is constant but the area of the mesh-load increases with increasing size of the structure. Thus a smaller structure means less load.
• You minimize mass and maximum deflection. These have different physical units. Therefore you need to apply a weighting factor to one of them in order to combine them into one meaningful objective value. 

Best,

Clemens

Comment by marco on October 18, 2013 at 11:41am

Hi Clemens,

I’ve been testing Karamba for a while now, trying to optimize a simple form based on its load transfer. Using a cylinder as a basic form, I try to put a horizontal force on it consisting of five circles. I want these circles to scale in a manner (in Galapagos) so I can get an optimized force flow as a result. In this case the cylinder would become wider at the bottom and narrow at the top. Instead of receiving this form I always get a straight cylinder with the smallest radius for all circles. Do you know where I’m going wrong with my settings? In the attached example I minimized the mass and displacement. Is that correct resp. what other settings do I have to make? I’d be very thankful for some input about this.

Marco

diff_radius_scales.gh

Comment by Nick Bruscia on September 29, 2013 at 3:01pm

Hi Clemens,

I gave your suggestions a shot.  I plugged in the location for GH as noted in the Plug-in properties, but without success.  The GH .dll is in (x86)Grasshopper for Rhino 5, so I tried to re-install there, ans had the same results. 

As a note, I selected the 32 bit Karamba version, since my Rhino 5 is installed as such. 

Thanks again for your assistance.  I'll keep trying ...

n

Comment by Karamba3D on September 29, 2013 at 1:32pm

Hello Nick,

did you install Karamba in the right directory? It should be the same as that where 'Grasshopper.dll' resides. You can find out the location of Grasshopper by selecting 'Tools' in the Rhino menu then 'Options...', 'Plug-ins' on the left, 'Grasshopper' on the right and the button 'Properties'. 

Another source of the problem could be that the bitnesses of Karamba and Rhino do not match.

Best,

Clemens

Comment by Nick Bruscia on September 29, 2013 at 9:45am

Hello,

Having an install issue with 0.9.0061, with Karamba version 1.0.4.  It seemed to install just fine, but upon opening GH, the components do not load.  No errors are thrown, it's just not there.  Perhaps I'm missing something simple?

Cheers,

n

Comment by pyrit on August 5, 2013 at 5:53am

n order to install Karamba 1.0.3. with the latest release of Grasshopper 0.9.0052 or higher you need to change the Karamba installation path to the folder where Grasshopper resides. This can be e.g. ‘C:\Users\admin\AppData\Roaming\McNeel\Rhinoceros\5.0\Plug-ins\Grasshopper {B45A29B1-4343-4035-989E-044E8580D9CF}\0.9.56.0′ for Grasshopper 0.9.0056.

for me only worked ...Plug-ins\Grasshopper\Libraries

in case anyone is struggling with the install like me

Comment by Vittorio Cravino on June 29, 2013 at 12:21pm

Hi all!

I am new to this magic world of Grasshopper and its plugin, so here it is my question:

How can i assign a Curve element such an arc to the "line to beam" panel? It only takes the end points of the curve and makes a straight line..

Or what's the right way to have a curved "finite element" to work on!?

Cheers

Comment by Mahdi Soheyli Fard on June 27, 2013 at 4:17pm

Hey All,

immediately with no introduction,

i wana calculate optimized support position on a supposed waffle ceiling, adapted to Persian Girih's Geometry,

the definition attached here got involved the beams rounded the base module but i cana define the lines of the girih,

here we have 2 question:

1- how can i make a range out of my item list to be checked by galapagos for selecting the best position of supports?

2- what's wrong with my modeling method (as i know there is something i haven't noticed), that it could not define as beams for the base of girih's module?

P.S: the definition has been written by Paneling Tools in some parts

thanks

surface%20subdivision.gh

Comment by Karamba3D on May 23, 2013 at 6:32am

In order to install Karamba 1.0.3. with the latest release of Grasshopper 0.9.0052 or higher you need to change the Karamba installation path to the folder where Grasshopper resides. This can be e.g. ‘C:\Users\admin\AppData\Roaming\McNeel\Rhinoceros\5.0\Plug-ins\Grasshopper {B45A29B1-4343-4035-989E-044E8580D9CF}\0.9.56.0′ for Grasshopper 0.9.0056.

Best,

Clemens

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