Double Layer Gridshell

For anyone looking at classic double layer gridshells (Mannheim, Weald and Downland etc) this set of components will be useful. There are tools to create centreline geometry (for analysis etc), lath cutting patterns, and solid geometry for modelling/visualisation.

This is relatively untested so apologies for any bugs that may exist - let me know if you find any.

Cheers

Alex

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Replies to This Discussion

Permalink Reply by spiral on July 13, 2012 at 5:27am

interesting work, thank you, is there any detail for beginners

Permalink Reply by Alex Baalham on July 13, 2012 at 4:23pm

Hi Spiral

The paper Gridshell Tectonics gives a good introduction to timber lath gridshells. Basically, the timber laths are straight and follow geodesic lines on a surface. The centrelines component generates the basic geometry by offsetting geodesic lines from a surface, and the other components use the resulting data to generate the solid geometry, connectors and cutting patterns.

I've recently tweaked the components - updated GHA and sample 3DM files attached.

Alex

Attachments:

Lath Column.3dm, 193 KB
Lath Column.gh, 15 KB

Permalink Reply by CongChien on July 13, 2012 at 7:04pm

Hi Alex
I'm trying to download files Freeform.ghx, but it seems it fails,
Thank you if you have little guidance

Permalink Reply by Alex Baalham on July 14, 2012 at 5:41am

Try right clicking the link and selecting 'Save Target As...' to download the file, and you might need to change the extension from 'XML' to GHX once you've downloaded. Most browsers recognise GHX files as XML and try to display them, resulting in a sreen full of code.

Permalink Reply by Kim Dong Wook on July 14, 2012 at 12:56am

wow~ really cool~

Permalink Reply by CongChien on July 14, 2012 at 5:56am

Well! Thanks Alex

Permalink Reply by Yoshi Fukumori on August 26, 2012 at 2:31pm

thanks for this tools! :D

Permalink Reply by BonBon on August 30, 2012 at 2:56pm

Hmmm... when i open this file it say "there are four unrecognized objects in the file maybe due to a plug in not installed". It there something Im forgetting? Thanks.. your work is wonderful!

Permalink Reply by Alex Baalham on September 9, 2012 at 10:39am

Sorry for not replying sooner, I've been away for a couple of weeks. Not sure what's causing your error, but I've attached the latest version of Gridshell Components and a new example file which should work fine. Older GH definitions won't work with this version as I've changed the way some of the component inputs and outputs. I've also added some new tools, including one that generates a unique clamp for each lath intersection (see below).

Attachments:

Gridshell components.gha, 34 KB
Example 1.gh, 54 KB

Permalink Reply by BonBon on January 12, 2013 at 11:44pm

Wonderful, Thank you!

Permalink Reply by Jonah Hawk on September 1, 2012 at 12:13am

Very generous of you to share. Thank you very much.

The column definition is looking for components I don't have:

Dowel Connectors

Geodesic line

Woven Centrelines.

Permalink Reply by Alex Baalham on September 9, 2012 at 10:47am

Hi Jonah

You'll need to save the 'Gridshell Components.GHA' file to your Grasshopper Components folder - see my reply to BonBon above for the latest version of Gridshell Components which has the components you mention. Also attached is an updated GH definition and base 3dm file for the lath column which works with the new version of Gridshell Components.

Please note this is written around GH 0.8.0066 and I haven't yet tested it in 0.9.xxxx.

Alex

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