# Mesh split/difference/intersection won't work

**URL:** <https://discourse.mcneel.com/t/mesh-split-difference-intersection-wont-work/146904>\
**Category:** Grasshopper\
**Tags:** windows\
**Created:** [August 23, 2022, 7:48pm UTC](https://discourse.mcneel.com/t/mesh-split-difference-intersection-wont-work/146904 "2022-08-23T19:48:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![amite06](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/amite06/32/342273_2.png) [@amite06](https://discourse.mcneel.com/u/amite06)\
**Post date:** [August 23, 2022, 7:48pm UTC](https://discourse.mcneel.com/t/mesh-split-difference-intersection-wont-work/146904/1 "2022-08-23T19:48:12Z")

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Hi  
I tried to split the meshes with one another. Both are single closed mesh, and all the componnets of the split/dif/int arn’t red, but the result is empty.  
does anyone know what the problem is?

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/d/c/a/dcac57c9d79ea9d6545d72bbcce1473643dc729f.jpeg)

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**Author:** ![laurent\_delrieu](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/laurent_delrieu/32/601605_2.png) [@laurent\_delrieu](https://discourse.mcneel.com/u/laurent_delrieu)\
**Post date:** [August 23, 2022, 8:57pm UTC](https://discourse.mcneel.com/t/mesh-split-difference-intersection-wont-work/146904/2 "2022-08-23T20:57:54Z")

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Hello  
I have the same problem

> [@Bug in Mesh Split](https://discourse.mcneel.com/t/bug-in-mesh-split/146786):
>
> Hello I want to cut a Mesh using MeshSplit, but I need to have clean grouping of mesh parts. For some mesh it works but for others it fails, there are too much parts and sometime bad cuts. See here an example in the grasshopper file. I have the same problem in Rhinoceros. [bug mesh split.gh](https://discourse.mcneel.com/uploads/short-url/3tuZQK0GqWbLYZr56RmLACYgBBf.gh) (488.7 KB) The cutters are a polyline that is extruded. Gyroid and Polyline generated here by @DanielPiker I think I was able to make my own tool sweat_smile Not bad 7.7 s vs 5 s with Legacy …

and there are many post with such problem. I understood that with Rhino7 (6?) this code was rewritten and is more reliable.  
I think there are more options in Rhinoceros. So you cant test on Rhino.

Also when you find a bug it is best to post the file and your system information.