# Different edge connection for edges and etach behaviour \[SOLVED\]

**URL:** <https://femdesign.discourse.group/t/different-edge-connection-for-edges-and-etach-behaviour-solved/145>\
**Category:** Features & Ideas\
**Tags:** solved\
**Created:** [2 February 2024 12:20 UTC](https://femdesign.discourse.group/t/different-edge-connection-for-edges-and-etach-behaviour-solved/145 "2024-02-02T12:20:46Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![TommasoVidali](https://dub1.discourse-cdn.com/flex017/user_avatar/femdesign.discourse.group/tommasovidali/32/131_2.png) [@TommasoVidali](https://femdesign.discourse.group/u/TommasoVidali)\
**Post date:** [2 February 2024 12:20 UTC](https://femdesign.discourse.group/t/different-edge-connection-for-edges-and-etach-behaviour-solved/145/1 "2024-02-02T12:20:46Z")

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Hi,

I would like to give different edge connection at the edges of a wall.

 ![image](https://europe1.discourse-cdn.com/flex017/uploads/femdesign_api/original/1X/5c7c1346feab6f791fa64f02afcbaf5e36b565a0.png)

It seems like that the component does not allow to differentiate between the different edges.

Am I right? If I am, could the feature be implemented?

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**Author:** ![TommasoVidali](https://dub1.discourse-cdn.com/flex017/user_avatar/femdesign.discourse.group/tommasovidali/32/131_2.png) [@TommasoVidali](https://femdesign.discourse.group/u/TommasoVidali)\
**Post date:** [2 February 2024 12:21 UTC](https://femdesign.discourse.group/t/different-edge-connection-for-edges-and-etach-behaviour-solved/145/2 "2024-02-02T12:21:00Z")

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![image](https://europe1.discourse-cdn.com/flex017/uploads/femdesign_api/original/1X/78477365df5d1c65ba239e2054c6d16e7bd3d1a6.png)

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**Author:** ![MarcoPelle](https://dub1.discourse-cdn.com/flex017/user_avatar/femdesign.discourse.group/marcopelle/32/6_2.png) [@MarcoPelle](https://femdesign.discourse.group/u/MarcoPelle)\
**Post date:** [2 February 2024 13:16 UTC](https://femdesign.discourse.group/t/different-edge-connection-for-edges-and-etach-behaviour-solved/145/3 "2024-02-02T13:16:26Z")

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Hi @TommasoVidali

Does it help? 👇🏼

> **[Shells | FEM-Design API](https://femdesign-api-docs.onstrusoft.com/docs/grasshopper/basics/shells#edge-connection)**
>
> The following section will show you how to set up Shell elements with properties such as: Material, Section, Eccentricity, Connectivity.

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<div class="post-metadata">

**Author:** ![TommasoVidali](https://dub1.discourse-cdn.com/flex017/user_avatar/femdesign.discourse.group/tommasovidali/32/131_2.png) [@TommasoVidali](https://femdesign.discourse.group/u/TommasoVidali)\
**Post date:** [2 February 2024 15:32 UTC](https://femdesign.discourse.group/t/different-edge-connection-for-edges-and-etach-behaviour-solved/145/4 "2024-02-02T15:32:11Z")

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It does. thanks Marco.

Is there any way to also set the Behaviour in the EdgeConnection component.

 ![image](https://europe1.discourse-cdn.com/flex017/uploads/femdesign_api/original/1X/d87e2c60dd08bad83f33986e16c9f8c7c9e4c344.png)

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<div class="post-metadata">

**Author:** ![MarcoPelle](https://dub1.discourse-cdn.com/flex017/user_avatar/femdesign.discourse.group/marcopelle/32/6_2.png) [@MarcoPelle](https://femdesign.discourse.group/u/MarcoPelle)\
**Post date:** [2 February 2024 16:09 UTC](https://femdesign.discourse.group/t/different-edge-connection-for-edges-and-etach-behaviour-solved/145/5 "2024-02-02T16:09:30Z")

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Unfortunately, it is possible to only set “Friction” with some custom code.

Is “Detach” an important feature?

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<div class="post-metadata">

**Author:** ![TommasoVidali](https://dub1.discourse-cdn.com/flex017/user_avatar/femdesign.discourse.group/tommasovidali/32/131_2.png) [@TommasoVidali](https://femdesign.discourse.group/u/TommasoVidali)\
**Post date:** [5 February 2024 08:20 UTC](https://femdesign.discourse.group/t/different-edge-connection-for-edges-and-etach-behaviour-solved/145/6 "2024-02-05T08:20:48Z")

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While analyzing the stabilizing walls in any type of project the “detach” function needs to be used to allow the bottom edge connection to behave properly.

So it is important for this specific analysis.

I never used it in any other analysis I made with FEM Design. 🙂

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**Author:** ![MarcoPelle](https://dub1.discourse-cdn.com/flex017/user_avatar/femdesign.discourse.group/marcopelle/32/6_2.png) [@MarcoPelle](https://femdesign.discourse.group/u/MarcoPelle)\
**Post date:** [20 March 2024 13:39 UTC](https://femdesign.discourse.group/t/different-edge-connection-for-edges-and-etach-behaviour-solved/145/7 "2024-03-20T13:39:54Z")

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@TommasoVidali  
You will be able to set detach/friction from now 23.1.0

 ![image](https://europe1.discourse-cdn.com/flex017/uploads/femdesign_api/original/1X/49532e5909c75370c1ea48d8418a52c7f6c40153.png)

**NOTE:**

Detach X\_Compression will override x\_neg that you have set in Motions.Construct

Therefore, it is equivalent in using DetachType == None and setting x\_neg == 0

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<div class="post-metadata">

**Author:** ![TommasoVidali](https://dub1.discourse-cdn.com/flex017/user_avatar/femdesign.discourse.group/tommasovidali/32/131_2.png) [@TommasoVidali](https://femdesign.discourse.group/u/TommasoVidali)\
**Post date:** [20 March 2024 13:57 UTC](https://femdesign.discourse.group/t/different-edge-connection-for-edges-and-etach-behaviour-solved/145/8 "2024-03-20T13:57:27Z")

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Great job! Thanks 🙂
