Dome - supports and beam edges

[Martin35 (Martin)]

Hi,

I have two questions in Karamba3D. I am pretty much a beginner in grasshopper and karamba and I am trying to create a dome structure with beams and then analyse it.

I first tried to create supports with “smaller then" command to find the lowest Z points (like in the picture) but couldn´t figure out why it was not working, my beam structure could not be analysed.

I then tried it with 4 separately points and created 4 separately supports. That worked so my beam structure could be analysed. Why is that so?

My second question is how to create joints between beams, so the beam endings will look smoothly and can be 3D printed later on.

I found joint rules or the addon karambaIDEA. Is there a way without a plugin or what would you suggest? Thanks in advance

dome with support and beams.gh (64.2 KB)

[matttam (Matthew Tam)]

Hi, you have to flatten your inputs, because you have multiple branches:

once you do this, then you do not have the error anymore:

Secondly, the extension of the beams in the geometry will need to be done yourself, either manually in rhino or with a grasshopper definition - for example, by extending each of your elements by a certain distance, but there is no “simple” step

[Martin35 (Martin)]

Yes I forgot to flatten, that was the problem! Thanks a lot!
I will try to extend each element, thanks!