Hi Guys, I am trying to build a staircase using only grasshopper. Until now I was able to do this. But as you can see I have not achieved the gap in between the balustrades. What is the best way to do this? [Forum Staircase 1] Spiral Staircase (DG)gh.gh (47.9 KB)

[image] Joseph_Oster: I just noticed that the inner balusters are offset in the wrong direction… :man_facepalming: Fixed that: [Spiral Staircase_2021_Jul11c] Spiral Staircase_2021_Jul11c.gh (72.7 KB) But noticed that the balustrade surface diverges from expected curvature at the top, caus…

[missing] This got a little carried away, maybe there’s something simpler? And there is an off-by-one error at the bottom that I don’t yet know how to fix. [Spiral Staircase_2021_Jul11a] Spiral Staircase_2021_Jul11a.gh (63.0 KB) P.S. Fixed off-by-one error with Shift List (yellow group) [Sp…

I have just used Rhino until now but I have just started using Grasshopper. So thank you so much for your help. I am currently trying to understand how the components work. I’ll get back to you via DM if I have any other doubts!

[image] dudemamu9: I’ll get back to you via DM if I have any other doubts! Please post any questions here in this thread instead of a private message. You’re welcome.

There is a slight misalignment (~1 cm?) between the balusters and the steps, caused by the ‘1’ value connected to the ‘Start’ input of Extend Curve (two of them). I think it’s best though that you understand and fix these issues. This shows Extend Curve ‘Start’ inputs set to zero, ‘Gap’ slider set…

Thanks for your kind comments Joseph. I was able to clean up the script a little more and make the bracket more aesthetic. But I haven’t yet been able to solve the extend curve issue which make my helix diverge from the original curvature. What’s the best way to approach this problem? [Forum Stair…

I don’t recognize the code anymore and the part that I wrote is broken. The balusters are not “solids”. Mine: [Spiral Staircase_2021_Jul12a2] Yours: [Spiral Staircase_2021_Jul12a1] That’s an extremely important detail! I’m not going to proofread your code to figure out what went wrong, sorry…

Sorry about that. I was trying to understand how it work and I missed a connection. I fixed it. Thanks for pointing it out! [Forum Staircase 3] Spiral Staircase_(2021.07.12).gh (63.2 KB)

[image] dudemamu9: [Forum Staircase 2] This image alone was the clue that something was wrong. Notice the reddish edge and yellow surface on the right baluster? That told me that the two weren’t joined properly into a single ‘Closed Brep’. As to extending the spiral curves, I don’t have a…

Dividing a spiral staircase glass balustrade in to equal lengths with gap in between

Grasshopper

Joseph_Oster July 11, 2021, 4:44pm 5

Fixed that:

Spiral Staircase_2021_Jul11c.gh (72.7 KB)

But noticed that the balustrade surface diverges from expected curvature at the top, caused by Extend Curve in your code. I’ll let you fix that.

Spiral staircase

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Dividing a spiral staircase glass balustrade in to equal lengths with gap in between

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