# Cutting Volume Griddle Mesh with Surface Mesh

**URL:** https://forum.itascainternational.com/t/cutting-volume-griddle-mesh-with-surface-mesh/2215
**Category:** Griddle
**Created:** [August 28, 2025, 2:30pm UTC](https://forum.itascainternational.com/t/cutting-volume-griddle-mesh-with-surface-mesh/2215 "2025-08-28T14:30:11Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Zakaria](https://avatars.discourse-cdn.com/v4/letter/z/b5ac83/32.png) [@Zakaria](https://forum.itascainternational.com/u/Zakaria)
#### Post date: [August 28, 2025, 2:30pm UTC](https://forum.itascainternational.com/t/cutting-volume-griddle-mesh-with-surface-mesh/2215/1 "2025-08-28T14:30:11Z")

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Hello everyone,

I’m trying to cut a volume mesh (generated with griddle) using a surface mesh (lithology remeshed with griddle), but the \_MeshSplit command doesn’t seem to work. The volume is a closed mesh and it’s the first time I’m facing this issue.

Has anyone encountered the same problem ?

 ![{737AAEDD-0AED-4A41-AFFF-F76B8DF54772}](https://canada1.discourse-cdn.com/flex031/uploads/itasca/original/2X/8/88da6b8d6f817450dbbf939ff246e5133f9f951b.png)

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### Author: ![jedel](https://avatars.discourse-cdn.com/v4/letter/j/4bbf92/32.png) [@jedel](https://forum.itascainternational.com/u/jedel)
#### Post date: [August 28, 2025, 5:15pm UTC](https://forum.itascainternational.com/t/cutting-volume-griddle-mesh-with-surface-mesh/2215/2 "2025-08-28T17:15:35Z")

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Hi @Zakaria

This appears to be an issue with Rhino functionality, so I would first try restarting the application and see if that resolves the issue.

There are also some other things to consider when working with the \_MeshSplit command.

- Keep in mind what tolerance parameter you are using. If Tolerance=Literal, the issue could be due to the absolute tolerance of your model
- In order to properly split, the “cutting” object must pass through the domain completely
- When working with more complex geometries, it sometimes helps to first intersect the meshes with \_GInt Tolerance=0 before proceeding with the split. This can result in a cleaner separation; however the geometries you are using seem to be quite simple, so I do not suspect that is the issue here

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### Author: ![galleon](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.itascainternational.com/galleon/32/765_2.png) [@galleon](https://forum.itascainternational.com/u/galleon)
#### Post date: [August 29, 2025, 4:58am UTC](https://forum.itascainternational.com/t/cutting-volume-griddle-mesh-with-surface-mesh/2215/3 "2025-08-29T04:58:00Z")

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Based on my experience, the meshsplit function may not work if a closed-volume mesh is grouped. I hope this is helpful.

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### Author: ![galleon](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.itascainternational.com/galleon/32/765_2.png) [@galleon](https://forum.itascainternational.com/u/galleon)
#### Post date: [August 29, 2025, 7:07am UTC](https://forum.itascainternational.com/t/cutting-volume-griddle-mesh-with-surface-mesh/2215/4 "2025-08-29T07:07:04Z")

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You can solve it by ungrouping the object that is grouped.