# How to modify mesh?

**URL:** <https://discourse.mcneel.com/t/how-to-modify-mesh/49271>\
**Category:** Rhino for Windows\
**Created:** [November 14, 2017, 7:46am UTC](https://discourse.mcneel.com/t/how-to-modify-mesh/49271 "2017-11-14T07:46:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sajesh\_pj](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/sajesh_pj/32/766432_2.png) [@sajesh\_pj](https://discourse.mcneel.com/u/sajesh_pj)\
**Post date:** [November 14, 2017, 7:46am UTC](https://discourse.mcneel.com/t/how-to-modify-mesh/49271/1 "2017-11-14T07:46:36Z")

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How Can I modify Mesh object ?  
Attached Old situation and new situation Rhino file. New situation Object top face is moved 90mm Z direction. How can I join mesh edges as per attached image?[Old.3dm](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/a/7/a78c8af854b074dc6387b368b3b65069c366593c.3dm) (269.0 KB)  
[New.3dm](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/a/3/a37e8836dae880a7e6ccee2f5d348bbaea31cfdb.3dm) (271.1 KB)  
 ![New](https://global.discourse-cdn.com/mcneel/original/3X/a/6/a6fc114b89790e18e8efd76190410c0cc3951f82.JPG) ![Old](https://global.discourse-cdn.com/mcneel/original/3X/0/5/05a24899062955efa898aedf27070da3948c935f.JPG)

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**Author:** ![BrianJ](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/brianj/32/751593_2.png) [@BrianJ](https://discourse.mcneel.com/u/BrianJ)\
**Post date:** [November 14, 2017, 8:05pm UTC](https://discourse.mcneel.com/t/how-to-modify-mesh/49271/2 "2017-11-14T20:05:15Z")

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It is possible to close this mesh after the top has been moved up but it may not be what you’re after.

 ![image](https://global.discourse-cdn.com/mcneel/original/3X/6/2/623555f84f36ae7a4825f9bfdcad0248bbbf0012.jpg)

Use DupBoder to create curves, or polylines in this case.  
Use Loft to create surfaces between the curves for the individual holes as well as the outer border  
Create meshes from the surfaces with the Mesh command  
Use Join to join all the separate meshes together… SelMesh is useful here since you may still have the surfaces  
Finally MeshRepair until all the naked edges can be closed. Unweld may also be helpful to see the actual geometry  
ShowEdges\>Naked Edge display can be used to see any gaps in the mesh if you need it closed

I hope that helps