algorithmic modeling for Rhino



A collection of useful geometry tools.  The plug-in includes utilities for mathematical forms, paneling systems, structures, and workflow.

Members: 500
Latest Activity: 6 hours ago

Discussion Forum

Platonic Icosahedron Truncation

Does anyone know what the "Truncation" parameter in Platonic Polyhedra is?  Common usage of the term, for example, takes an icosahedron to a soccer ball by truncating the vertices.  But the Lunchbox…Continue

Started by Ted Fails Jun 9.

Difficulty getting hex pattern on rotation 1 Reply

20yrs in autocad writing scripts and such with lisp. 2 days in Rhino/Grasshopper. Wow, what an amazing tool.I'm struggling with getting my intended hex pattern fit to my rotated surface that I've…Continue

Started by kwesty. Last reply by peter fotiadis May 23.

Problem subdividing surface with Diamonds 5 Replies

Hi All, I have a problem with a surface I'm designing (see screenshot attached). Since the surface height changes, the height subdivisions (V coordinate) of the diamonds make the diamonds irregular.I…Continue

Tags: V Subdivision, Diamonds, Lunchbox

Started by Juan Camps. Last reply by James Ramsden May 13.

lunchbox not working windows 8 update

hello,i have got the problem that the excel refence tool is not working anymore.i updated my system to windows you have an idea where the bug is?thnak you!Continue

Tags: lunchbox, windows_8

Started by bea franko Mar 31.

Comment Wall


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Comment by Toussaint Jimenez Rojas on November 24, 2012 at 7:02pm

i'm using the read open excel file to read a CSV file, and i get notice that when the CSV file have empy value in some of the tabs the commponent trim this and my branch list have sometimes all the item index and sometime less index than the desire cuz the empty index are trimed, thats an error of the component or what ?

Comment by Philipp on October 9, 2012 at 2:26pm

id it possible to make a picture frames with a command line node?

Comment by Philipp on August 15, 2012 at 1:09am

A small wish - please make bake component workable with groups..,

Also It will be really nice to work with google spreadsheets as with exel tables 

Comment by Patrick Delorey on August 9, 2012 at 7:37am


I'm running the most current version of LunchBox. I've had trouble reproducing the error in new files as well. On the bright side, the issue is more of an annoyance than catastrophic.

Comment by Nathan Miller on August 9, 2012 at 7:31am


This is rather perplexing to me as well.  I am only able to repeat the problem within your file.  If I set up a similar bake system in any new file (re:  list of objects, list of layers) in v0.9006, it behaves as expected... only your file seems to be giving this trouble.  Have you upgraded to the newest version of LunchBox also?


Comment by Patrick Delorey on August 9, 2012 at 6:43am

Hello Nathan,

I've been working with Lunchbox with the latest release of the Rhino 5 beta (64-bit) in Grasshopper 0.9.006 and have run across a rather confusing problem.

When I bake a set of curves to a set of layers, I get duplicate geometry.

Running undo within Rhino ('Undo Grasshopper Solution') removes the duplicate geometry. Also, the baked geometry is always precisely twice the number of input objects. These two factors taken together, it would seem like it is executing the bake twice. Still, I can't figure out why this would be the case. Any thoughts? (Definition and template file attached)

This definition with the current release of LunchBox was working perfectly in Grasshopper 0.8.0066. It's only since upgrading to 0.9.0006 that I've found this issue. Thanks in advance for any help you might be able to offer.


Template: RoofGridTemplate.3dm

Comment by Nicky on August 6, 2012 at 11:02pm

thank Nathan .. it's really simple that I could not think of .. great.

Comment by Nathan Miller on August 6, 2012 at 3:59pm

Try setting the division parameter to an even number.


Comment by Nicky on August 6, 2012 at 11:19am

hi Nathan, thank you for amazing tools.i love it.

I use  lunchbox that had a small error..(Swiss Re)

similar to other components:


other's ok.

I hope for your help to better..thanks...

Comment by sim odu on August 1, 2012 at 5:04pm

Hello all,

I'm having issues with trying to design a diagrid for this model surface. I have attached a .pdf and .jpg image of the draped surface.

1. I used a "draped surface" to design the surface for the diagrid definition and then trimmed it to my desired specifications. However, the definitions I've found don't confine themselves to the parameters of the surface, they continue to the extents of original untrimmed surface. Is there a definition that will confine themselves and "fit" to the parameters of this newly edited surface?


2. I am trying to get a diagrid that will bake only the structural grid of the diagrid and then the glass component separately. I will be rendering this later and I need both components to be distinct of one another.

Please help, I am running out of time, I have been freaking out trying to figure this out and I have found nothing that helps my project. I've searched and found different definitions, tampered with them to fit my project and yet to no avail.

I am still learning this plug-in and I enjoy it's functions, PLEASE HELP!!!




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