Parameteric helix shape with multiple variables

Grasshopper Pufferfish
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1

I’m some attaching some images of a spiral tube that i need to create on grasshopper , and keep it as variable dependent as possible. I have managed to create a singular rail curve but am unable to sweep the profile shape around it to create the form in the image. need some urgent help with this. Would me much appreciated :slight_smile:

Spiral_01_04_2025.gh (14.4 KB)

arm length
arm length1651×805 101 KB

Indented egg profile 1
Indented egg profile 11451×789 27 KB

Indented egg profile.dxf (175.7 KB)
spiral-arm physical
spiral-arm physical327×240 38.7 KB

spiral-arm-variants
spiral-arm-variants851×1423 100 KB

2

There was a mistake here, so your rail-curve was misconstructed.

grafik
grafik230×326 12.3 KB

why not build your shape from many sections?
Sweep1 works best with profile-curves perpenicular to the rail (and it seems to me that your fotos are showing this as well).
For your profiles loft works much better.
grafik
grafik774×675 105 KB

RE_Spiral_01_04_2025.gh (13.5 KB)

3

My interpretation.
Spiral_01_04_2025 a.gh (25.9 KB)

img1
img1484×737 16.6 KB

4

Thanks for your reply. yes i ended up trying a similar approach - loft indeed seems to be working better. Really appreciate you feedback
Spiral_01_04_2025.gh (30.4 KB)

5

Looks perfect. will study this as well. really appreciate your support !