Offset the face of a brep

Grasshopper
1

Hi all,

I have a set of surfaces which I want to offset, but maintain the intersection between the new offset surfaces.

image
image619×883 47.4 KB

Is there a relatively easy way of doing this ?

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image1593×533 146 KB

Any suggestions welcome

2

Are you talking about a ‘solid’ offset or a ‘thickening’ of sorts? You can search this forum for scripted methods that achieve that. You cannot do this natively in grasshopper. Pufferfish would be a plug-in with a polysurface offset component.

1 Like
3

https://www.food4rhino.com/en/app/sasquatch-utilities

sasquatch has an offset brep component, you could try that one.

4

Some thoughts:

  1. Could this be done by scaling the Brep ?
    or
  2. What about
  • Make a contour curve
  • offset the curve
  • revolution?

regards, Eef

2 Likes
5

:raised_hand: I second offsetting the profile contour of the revolution solid and rebuilding.

1 Like
6

Here a quick reconstruction:

high res test
high res test1516×1166 132 KB
Screenshot 2025-12-11 194901
Screenshot 2025-12-11 1949011491×1455 53.9 KB

Offset the face of a brep VR 01.gh (29.6 KB)

You will have to Brep Join your form’s pieces. Then you can query the edges for the interior edges and cull them of the circles with a Line container. Join Curves → Offset Curve → Revolution

7

Thanks Guys,

I finished up modelling a polyline of the profile, offseting it and revolving it. Easy when I opened my eyes.

Apprecieate your help.

8

Mark as solved.