How to adapt the edge of a surface to another edge of another surface?

Rhino
1

Hello,

I would like to adapt the edge of a cylinder to another cylinder that does not have a perfectly round edge. Can you tell me how to adapt an edge of a surface to another edge of another surface?

Thank you.

2

Hi Melvin -

Please post your .3dm file. Most likely, you will have to create some transitional surface but it’s hard to know what you are trying to do.
-wim

3

Hello,

Here is the file, I am trying to fit the surface edge to the other surface edge.

Thanks,
Good luck.
Bague Double Attaches Test.3dm (680 Bytes)

4

Hi Melvin - that is not a legitimate Rhino file as far as I can see. It shows only 680 bytes. Can you try again?

-Pascal

5

Bague Double Attaches.3dm (14.6 MB)
Hello, here is the file, I hope it will be ok. Cordially.

6

Hi Melvin - the lower part is closed where you want to join it - use _ExtractSrf to remove this face:

image
image958×517 46.6 KB

then joining should work.

-Pascal

7

Hello,
Thanks for your help. I extracted the surface and now have two polysurfaces open but I can’t select the edges of my two surfaces. Can you tell me if there is a problem or maybe I am using the wrong commands. Cordially.

8

Hi Melvin - what do you want to do with the edge? If you want to MatchSrf, the surface must be extracted from the polysurface and the edge must be untrimmed. If you just want to Join, select both polysurfaces and Join.

-Pascal

9

Hello again, here are some photos to illustrate. I would like the top surface edge to match the bottom one. Cordially.

Capture d’écran 2022-05-06 à 20.24.46
Capture d’écran 2022-05-06 à 20.24.46618×810 55.9 KB

Uploading: Capture d’écran 2022-05-06 à 20.24.56.png…
Capture d’écran 2022-05-06 à 20.25.10
Capture d’écran 2022-05-06 à 20.25.101292×710 205 KB

10

Hi Melvin - yep, MatchSrf is your friend here - you will need to extract the upper surface from its polysurface first:

image
image848×1159 124 KB

-Pascal

11

Excuse me, but I can’t. The surface doesn’t fit when I extract the surface and also when I don’t extract it.

12

Hello- see if this is what you expect -
Bague Double Attaches_PG.3dm (7.6 MB)
-Pascal

13

Hello, yes that’s exactly it, thank you. Do you know just quote me the steps you did and then I stop bothering you. Thank you.

14

Hi Melvin -

  1. _ExtractSrf the small surface and delete.
  2. _ExtractSrf the upper surface.
  3. _MatchSrf with the settings I show above
  4. _Join

any luck?

-Pascal

15

Thank you very much, good evening.