algorithmic modeling for Rhino


Geometry Gym BIM

BIM (Building Information Modeling) enhancements for Rhino and Grasshopper, import/export to Revit, Digital Project, Bentley and Archicad amongst others.  Also Structure modeling (including analytic) and Computational Geometry Tools such as mesh relaxation/inflation and tessellation tools.

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Installation instructions are located in this discussion,

Discussion Forum

Force density

Hi.Is there any way to control the length of the links of a mesh during force density relaxation? Usually in the comercial solutions which I use this is achieved by calculating the correct force…Continue

Tags: density, Force

Started by David Mavrov Jan 31.

Karamba to SCIA 2 Replies

Hello all, I am interested in importing a model from Karamba analysis to SCIA model keeping the geometrical and structural information. Could you tell me if this is possible?I have downloaded a SCIA…Continue

Started by popi papa. Last reply by popi papa Jan 16.

Karamba to SAp2000 3 Replies

I'm using the ggKarambaIFC component, but I do something wrong.I do the output IFC and then I import it into Sap, But it doesn't recognize the Beam selections that the Beam optimizer did into…Continue

Tags: sections, ggkarambaifc, geometrygym, ggkaramba, cross

Started by Alexia Ch. Last reply by Jared Parker Jan 3.

Karamba to Robot missing component 2 Replies

Hi Jon,In a previous version of the ggrobottokaramba plugin you had provided a component that bakes the output of a Karamba model directly into Robot. In the most recent versions of the ggrobot and…Continue

Tags: Robot, to, Karamba, Gym, Geometry

Started by Habiba Moubarak. Last reply by Habiba Moubarak Dec 18, 2017.

Sweep custom profile (not from database) 2 Replies

Is it possible to work with custom profiles ? I want to draw or import a custom profile by my need. It's just an example below of many different profiles…Continue

Started by MojaPana. Last reply by MojaPana Dec 1, 2017.

Revit-Rhino-Tekla 1 Reply

Dear All Friends,I have some customer using Revit for concrete modeing, but them can not make rebar model and shopdrawing by Revit. I see Rhino can input model revit through IFC file or some…Continue

Started by NGUYEN DUC HOA. Last reply by Jon Mirtschin Nov 26, 2017.

Installing Geometry Gym Plugins 133 Replies

If you have problems installing, there is instructions outlined here: you have problems,…Continue

Tags: SSI, StructDrawRhino, Error, Install, Gym

Started by Jon Mirtschin. Last reply by Jon Mirtschin Nov 26, 2017.

Transfer of Geometry Gym Discussion Group

I'm assuming that group discussions will also be closed with the pending forum transfer.There is a Geometry Gym category under plugins on discourse.…Continue

Started by Jon Mirtschin Nov 20, 2017.

Comment Wall


You need to be a member of Geometry Gym BIM to add comments!

Comment by Qi WU on February 26, 2016 at 10:26am

Hi Jon, For the latest version of ggSAP, the ggSAPCreateFrameProp component is not working properly. Is that a bug? It was working fine in your v17.1.1.

Comment by ClaraML on February 17, 2016 at 2:04am

I'm having a problem with GG and SAP2000. I'm using SAP2000 18, not 17. And I've detected at least one component (the library material) that search for information in the SAP17 route. Is there any way for changing that route and make the component search in the correct route? If not, I can duplicate the SAP18 folder and rename it like SAP17, so the component could find the information. Do you think it will work?

Comment by lee ji yonh on February 2, 2016 at 8:52pm

Hi Jon,

Currently i have a problem to create a column. I don't know what i should do. how do you make a logic? Now this problem's message is "overcast will not be column type"

Kind Regard, 

Jiyong Lee

Comment by Ghazal Javidan on January 13, 2016 at 12:31am

Hi Jon

I have not got any reply for my Geometry gym license request email yet. would you please response to that? tn

Comment by Zhengyu Xue on March 22, 2015 at 4:22am

Hi, Jon,

Do you have any related videos about how to do structural analysis about shell structures?

Kind Regards,

Xue Zhengyu 

Comment by Jon Mirtschin on February 17, 2015 at 1:31pm

Hi Tim,

For GSA, you need to manually start GSA application (and close the default opening dialog) prior to any baking.  Else when a plugin initiates contact, the application is started as a background service (that the user can't access).  I can't control this, but the background service is useful for faster performance (when say running galapagos) and not having to manually close dialogs.  The Oasys webinar below has some explanation on this.

Hope it helps.

Comment by Tim on February 17, 2015 at 9:37am

Hey everybody,

Currently I have problems with baking my grasshopper structure into Oasys GSA. When I push the "bake to GSA" button, nothing happens. In my Rhino command window it says: 

Material Count: 1, SectionProperty Count: 1, Node Count: 441, Element Count: 1240
Load Case Count: 1

So apparently there is no error.

Could anyone please help me?

Kind regards


Comment by 建筑师哈哈 on October 5, 2014 at 11:31pm

Comment by MARTIN on August 21, 2014 at 8:34am

Hi everybody !

I have used grasshopper for few years, and I don't reach to understand the basics of the geometry gym for SAP2000 components.

Does somebody have a small tuto or a video to help me to understand how I can export my rhino model to SAP2000 ?


Comment by I_M_F [Iker Mugarra Flores] on June 5, 2014 at 10:20am

Hi Jon,

hope you are well, I have been thinking on testing how to export parametric models into Revit and I was wondering if I need to install your other IFC plugins in addition to " + REVIT/VASARI 64 Bit Installers, contact me for 32 Bit?




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