Ribbed Surface on a filleted Shape

Grasshopper
1

hi there,

I’m trying to create a ribbed surface similar to the one in this image (attached) using Grasshopper.

The surface image working on looks like a cylindrical or rounded shape with evenly spaced horizontal ridges, much like a lamp with concentric rings or grooves wrapping around the surface.

to be clear - Its not going to be a lamp as the images, so im not going to copy it - this is the closet images I found that shows what im looking for (ribs that rotate by its normal direction)…

it someone knows have a tutorial for that it would be great.

tnx.

IMG_3976
IMG_3976878×1554 407 KB

2

the effect has a similar flavor as this one:

in the above video there is some Random involved, and there are many cross-section along each circle because the author wanted variety of shapes… you won’t need that if you are looking for repetitive identical features along the Surface, but the general workflow is very similar

3

If this is the type of effect you want I can clean up my GH file and post it for you:

10
101187×1141 119 KB

For this design I used a 7 sided filleted polygon, but any closed curve would work. The image doesn’t show it well, but my file makes a shape with an inside and an outside surface resulting in sides that are a few mm thick. If you are doing clay printing or injection molding or fabricating from a rolled sheet of metal you only need a single surface.

4

Do you want to apply a ribbed texture to an existing surface or create the ribbed surface from scratch?

Here’s a surface of revolution based on a profile curve that has had ribs applied.

You can change the number of ribs and the initial curve but it is a surface of revolution.

Obviously, you could loft the ribbed curve if you don’t want a surface of revolution.

image
image1769×726 121 KB

Ribbed_Rev_Srf.gh (9.5 KB)

1 Like
5

Did you find a solution to this?