Grasshopper

algorithmic modeling for Rhino

Fabricating 3D Delaunay structure with joints in MDF

Hi all,

I am trying to fabricate a 3D Delaunay surface with MDF and slot joints. However, I have not the slightest clue how to add in the joints. I attach here the GHX file with the wire mesh and the type of joints I am referring to. This image is sourced from here:

http://www.dezeen.com/2009/05/20/3d2real-by-ilek-students/

 

Look forward to your response. Cheers!

 

Rgds,

Kent

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Are you intending to make it from slender members or sheet members? I would personally recommend making a small paper model to help you visualise how the joints may work.

I am thinking of MDF sheets with no gaps between them.

This is a start.  It notches both parts, panels and connectors to full depth so that needs to be modified.  Also it's set up to work in the C-plane so that's another limitation.

 

Chris

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Hi Chris,

 

Thanks for the wonderful definition. It does create a delaunay waffle. Actually, I tried the delaunay mesh with another definition from a 2009 topic in the forum but the joints doesn't work (se attached). Where there are longer lengths (due to the delaunay geometry), the joints are still limited to a standard number of 2, this might not be structurally sound.

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This is a better version of my earlier waffle definition in that it creates the half-depth notches and it's annotated.  You have to make sure that the panels don't intersect each other else the Booleans will fail.  Based on your initial reference to the waffle project I thought that waffles was where you were headed.  I wonder if it's difficult to assemble a waffle of triangles?  Probably not if the material can flex a little and the notches aren't too deep.

 

Chris

 

 

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Hi Chris,

Thanks for your very neat definition, it works perfectly. I will take some to time to understand the logic behind it. Meanwhile, I have a deadline to meet, will do some design experiments with this definition and post them here once I am free again.

 

Kent

hi, i just downloaded the file and played with it, i move a couple things, see if it works for you, im using a primitive mesh from weavebird.

 

 

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Thanks David, I tried your definition, the curved corners look great now. However, I noticed the notches still look strange. I tried Chris' method of creating half-depth notch, not too successful, a little beyond me....see attched image.

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Kent,

This is the 'Mesh fabricatorbasic' definition with the half notching added.  I haven't looked at 'Mesh fabricatorbasic 2'.  Post again if you get stuck.

 

Chris 

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Hi Chris,

Thanks heaps. Will test it out right away. Are you an architect or student btw? :)

 

Rgds,

Kent

Carpenter.  Student of Grasshopper.

Hi Chris,

I noticed the boolean edge inside the circular disc is curved, is that for flexibility in the interlocking?

 

Kent

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