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.

Members: 1664
Latest Activity: Dec 21, 2022


Installation instructions are located at Rhino Package Manager (Yak) - Geometry Gym

Discussion Forum

Student licens 3 Replies

Hi Geo Gym.I'm a student at Aarhus University in Denmark and my trial license has expired.Is it possible to get a free student license for a year?If yes, how ? Best RegardsTroelsContinue

Started by Troels Meldgaard Jensen. Last reply by nicolas lovey Dec 21, 2022.




Started by othmane. Last reply by othmane Aug 24, 2022.

get license to use SAP2000 v22 plugin

Dear, I am trying to use the SAP2000 plugin with grashoper but I always get commands that indicate that a license is required (ggrhinoSAP expired), could someone help me how to obtain a trial license…Continue

Started by IVAN SAAVEDRA TAMATA Apr 5, 2022.

get license to use SAP2000 v22 plugin

Dear, I am trying to use the SAP2000 plugin with grashoper but I always get commands that indicate that a license is required (ggrhinoSAP expired), could someone help me how to obtain a trial license…Continue

Started by IVAN SAAVEDRA TAMATA Apr 5, 2022.

sap2000 solid element issue 2 Replies

Hi Jon.It is my first time with solid element and I wasn't able to import into sap2000 v18.0.1.There is no error in the solid property import but I didn't see Node and element.…Continue

Started by Marco Pellegrino. Last reply by Paul Laroque Feb 24, 2022.

ggIFCO error 1 Reply

I am generating ifc plates and try to add openings to them using Geoemtry gym and Grasshopper. However ggIFCO always returns an Invalid Cast Error for me. Suprisingly using the old ggIFCO component…Continue

Tags: Gym, Geometry

Started by Lukas Fuhrimann. Last reply by Jon Mirtschin Jan 3, 2022.

GSA geometry gym bake error 1 Reply

I keep getting this error when using the GSA geometry gym bake component.1. ggGSARetrieving the COM class factory for component with CLSID {DA9D8CF0-713B-4E11-B1EB-5C2C47FD32A5} failed due to the…Continue

Started by Naeem. Last reply by Katarina Smith Oct 26, 2021.

need support on “ggGeoDome” 2 Replies

Hello,I have a question on module "ggGeoDome", the vertex of the polyline curves it generates do not coincide, but if I invert the boolean of "Lines", the vertex are coincide.So is there a way to…Continue

Tags: geodome

Started by luigi. Last reply by Emma Kayro Oct 22, 2021.

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

Comment by Oscar43 on December 1, 2022 at 1:34am

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Comment by Ravenerabnorm on November 5, 2020 at 5:16am
I have found that when I use ggSweepProfile on certain catalogue profiles the results are two dimensional i.e. on plan the profiles are a line, on elevation they look fine. Funnily enough the only profiles the sweepprofile fails to work on is I beams.
Is this a known bug or am I doing something incorrectly.
Comment by Bret Heyer on June 4, 2020 at 11:19pm
you can make a flange with construction points and a pline
Comment by nathanluke5 on June 4, 2020 at 6:00pm
Hi Arina,
Again you can create tapered sections using the ggRhinoIFC components. Can you please contact us at outlining which cataloguesprofiles you are wanting to incorporate.
Comment by nathanluke5 on June 4, 2020 at 5:59pm
Hi Lincoln, No you cannot create such a section in BullAnt currently. You could use ggRhinoIFC to create a compounded section. Is it for structural analysis?? We do allow creation of these sections in some of our analysis plug-ins also. If you want to discuss further please contact or post on the new Rhino Forum.
Comment by Arina on June 2, 2020 at 8:51pm

As far as I know, we can't customise a section to such extent in GG.

If GG happens to look into this issue, can you please look into

1. the customisation of a section tapered along length as well.

2. update the ggcatalogueprofile to incorporate the British Steel and EN10210/EN10219.


Comment by Lincoln on June 2, 2020 at 8:33pm

Dear all,

i am trying to build up a RHS with different flange thickness and web thickness. (like 400x300x8x15) But the BullAnt only can create RHS with same flange and web thickness. Can anyone know how to create such section? Many thanks!

Comment by nathanluke5 on May 5, 2020 at 9:01pm

Hi Diego, try updating your Etabs Plug-in. If it doesn't fix your issue please contact and we will gladly help you with fixing the issue.

Comment by Diego Abelino on May 4, 2020 at 7:22pm

Dear Jon,

I'm currently using Geometry Gym to create Frame elements, assign section properties and attributes to take into Etabs18.

the problem, that I'm facing is that the frame attribute "name" in the component "ggETABSFrameAtts" get not exported to Etabs. I can modify all the other attributes, but when I bake the model, the name of the Frame elements keep defined by default and not like I had defined previously with the component. Do you have any advice to solve this issue?



Comment by Ming Chong on July 18, 2019 at 4:17am

Hi, Just wondering do you have any plan to expand the functionality of GGEtabs, include components like diaphragm assignment, wind load assignment, ability to run analysis without bake and save, etc. That would be super helpful.


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