# How to convert open mesh to close mesh in Rhino

**URL:** <https://discourse.mcneel.com/t/how-to-convert-open-mesh-to-close-mesh-in-rhino/47756>\
**Category:** Rhino for Windows\
**Created:** [September 26, 2017, 8:00pm UTC](https://discourse.mcneel.com/t/how-to-convert-open-mesh-to-close-mesh-in-rhino/47756 "2017-09-26T20:00:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![rasha](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/rasha/32/65014_2.png) [@rasha](https://discourse.mcneel.com/u/rasha)\
**Post date:** [September 26, 2017, 8:00pm UTC](https://discourse.mcneel.com/t/how-to-convert-open-mesh-to-close-mesh-in-rhino/47756/1 "2017-09-26T20:00:00Z")

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Dear All,

I have a problem converting complex open mesh to close mesh. When I check “Mesh Repair”, it says that it is a good mesh but yet an open mesh not a close mesh.

Is there anyway I can convert it to a close mesh?

Here is some detial of the mesh:  
mesh  
ID: 12bfb5a7-81df-46b8-a138-e2b5784c2e (13)  
Layer name: Baby Body  
Render Material:  
source = from obj  
index = 2  
Geometry:  
Valid mesh.  
Open double precision polygon mesh: 9468 vertices, 18892 polygons with normals  
bounding box: (-64.201,-61.1607,-178.902) to (134.654,97.533,85.3908)  
Geometry UserData:  
description: ON\_Mesh double precision vertices  
saved in file: yes  
copy count: 13

Thanks!

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<div class="post-metadata">

**Author:** ![wim](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/wim/32/747482_2.png) [@wim](https://discourse.mcneel.com/u/wim)\
**Post date:** [September 26, 2017, 8:39pm UTC](https://discourse.mcneel.com/t/how-to-convert-open-mesh-to-close-mesh-in-rhino/47756/2 "2017-09-26T20:39:30Z")

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I’d say that depends entirely on the openings in the mesh. Does ` FillMeshHoles` do any good?  
You’ll probably have to post that file to get any answers that actually help…

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**Author:** ![pascal](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/pascal/32/479395_2.png) [@pascal](https://discourse.mcneel.com/u/pascal)\
**Post date:** [September 26, 2017, 8:53pm UTC](https://discourse.mcneel.com/t/how-to-convert-open-mesh-to-close-mesh-in-rhino/47756/3 "2017-09-26T20:53:05Z")

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Hi Rasha - use `ShowEdges` \> Naked edges to see which edges are open. Does that tell you anything useful? If there are small cracks and not a large opening in the mesh, `MatchMeshEdge` may close it up - make sure to run Check afterwards,

-Pascal

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**Author:** ![rasha](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/rasha/32/65014_2.png) [@rasha](https://discourse.mcneel.com/u/rasha)\
**Post date:** [September 27, 2017, 1:55pm UTC](https://discourse.mcneel.com/t/how-to-convert-open-mesh-to-close-mesh-in-rhino/47756/4 "2017-09-27T13:55:16Z")

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Thank you! it works very well using Show edges command and was able to see the holes. Then with MatchMeshEge was used to close the hole. Hope it will work smoothly with the others, as well.

Many thanks,  
Rasha