# Noob mesh problems

**URL:** <https://discourse.mcneel.com/t/noob-mesh-problems/197468>\
**Category:** Rhino\
**Tags:** windows, mesh\
**Created:** [January 8, 2025, 6:16pm UTC](https://discourse.mcneel.com/t/noob-mesh-problems/197468 "2025-01-08T18:16:19Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![FraBene](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/frabene/32/595751_2.png) [@FraBene](https://discourse.mcneel.com/u/FraBene)\
**Post date:** [January 8, 2025, 6:16pm UTC](https://discourse.mcneel.com/t/noob-mesh-problems/197468/1 "2025-01-08T18:16:19Z")

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Hi guys i’m new in the mesh modeling world in rhino and i’m stuck with this problem: how can i plug this hole when i split the mesh? i tried to create some patch between correspondents edges top-down the model and then i “quadremesh” it i still got some tiny holes in the mesh. is there another workflow that i miss? I would like to achive two parts that i can print in my small 3d printer. Any help is gratefully received

 ![Screenshot 2025-01-08 185952](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/0/c/d/0cd1aa89ad79db5350642f298a12286a03866495.jpeg)  
 ![Screenshot 2025-01-08 190006](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/f/1/7/f17e30237c34022cfbe4620cf8f16e62613576dc.jpeg)  
[sneaker\_last\_highpoly splitted.3dm](https://discourse.mcneel.com/uploads/short-url/8p6F3uRncc9yTGsBFHzJB1RyzOs.3dm) (14.4 MB)  
 ![Screenshot 2025-01-08 190021](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/0/b/f/0bfe5bb74f3ef392cb755638c5acd997a839c10e.png)

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**Author:** ![martinsiegrist](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/martinsiegrist/32/498369_2.png) [@martinsiegrist](https://discourse.mcneel.com/u/martinsiegrist)\
**Post date:** [January 8, 2025, 7:39pm UTC](https://discourse.mcneel.com/t/noob-mesh-problems/197468/2 "2025-01-08T19:39:41Z")

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I would subtract a thin piece maybe 0.2 mm thick instead of splitting the mesh.

Use the mesh boolean difference command.

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/9/c/1/9c1dbe4017731af2986a2aa863f81b86d7fc0643.png)

\_MeshBooleanDifference

I had to run \_SplitDisjointMesh afterwards to split the mesh in its two pieces.

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/8/f/7/8f70f01aee4f71c2a01bb243deb5bd70c023c1ec.jpeg)

Both meshes are closed

[subtract-dontsplit.3dm](https://discourse.mcneel.com/uploads/short-url/pElOlKo7M1yJdP5tACSUYfgJY87.3dm) (8.0 MB)

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<div class="post-metadata">

**Author:** ![FraBene](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/frabene/32/595751_2.png) [@FraBene](https://discourse.mcneel.com/u/FraBene)\
**Post date:** [January 8, 2025, 8:03pm UTC](https://discourse.mcneel.com/t/noob-mesh-problems/197468/3 "2025-01-08T20:03:11Z")

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thanks man i was hoping for a quick shortcut like that

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**Author:** ![theoutside](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/theoutside/32/770924_2.png) [@theoutside](https://discourse.mcneel.com/u/theoutside)\
**Post date:** [January 8, 2025, 10:33pm UTC](https://discourse.mcneel.com/t/noob-mesh-problems/197468/4 "2025-01-08T22:33:14Z")

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Martin’s fix is the correct way to go-

the nitpicky technical fix is to use patch single face to break it up into smaller holes. then use fillmeshhole to fill it in-

see this video

[![](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/6/0/a/60a13a84be4382df78c46c1b12433941f0acd641.jpeg "Rhino 8 - Watertight Mesh Repair") ](https://www.youtube.com/watch?v=QW-SjceefsQ)