# Cut Geometries

**URL:** <https://forum.dynamobim.com/t/cut-geometries/29140>\
**Category:** Geometry\
**Created:** [November 30, 2018, 11:39am UTC](https://forum.dynamobim.com/t/cut-geometries/29140 "2018-11-30T11:39:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![RitaAguiar](https://avatars.discourse-cdn.com/v4/letter/r/e9a140/32.png) [@RitaAguiar](https://forum.dynamobim.com/u/RitaAguiar)\
**Post date:** [November 30, 2018, 11:39am UTC](https://forum.dynamobim.com/t/cut-geometries/29140/1 "2018-11-30T11:39:16Z")

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Hi,  
I am new to Dynamo and to this forum.  
I would like to know if it is possible to use Geometry.Split to obtain the cut between a geometry and another, or do I need instead to install a dynamo package which already includes a custom node to cut geometry?  
If you know where I can find a tutorial or a post with help on this matter I would really appretiate it.

I am trying to cut the solid geometry box to the solid geometry cylinder (seen in the attached image).  
I have first selected the two elements to get their geometry so that I can then do the cut

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/6/2/623fffb13b1528c39db0ce8cf43cd67eebf0942a.png)

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**Author:** ![lucamanzoni](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/lucamanzoni/32/56718_2.png) [@lucamanzoni](https://forum.dynamobim.com/u/lucamanzoni)\
**Post date:** [November 30, 2018, 11:52am UTC](https://forum.dynamobim.com/t/cut-geometries/29140/2 "2018-11-30T11:52:58Z")

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Hi,  
welcome to the forum. Do you mean to remove one solid from another?  
You can use the node Solid.DifferenceAll:

 ![SolidSub](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/8/a/8a5981d17c29fefce66ede88f5d5ac1bc3b1bcaa.png)

 ![SolidSub2](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/5/c/5ca98e1f6924aefe97cff5abc2d0bf1a1bc9b962.jpeg)

In this case a remove the volume of the pipe from the box.

GeometrySplit works like a knife: you use a geometry (a curve or plane usually) to split another geometry

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**Author:** ![mh.moe](https://avatars.discourse-cdn.com/v4/letter/m/edb3f5/32.png) [@mh.moe](https://forum.dynamobim.com/u/mh.moe)\
**Post date:** [July 19, 2019, 4:10am UTC](https://forum.dynamobim.com/t/cut-geometries/29140/3 "2019-07-19T04:10:37Z")

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Hi lucamanzoni,  
I would like to do cut geometry to my structure model with reference link file which created by MEP, showing solid generic model for pipe opening. I can see reference revit link family in the list but couldn’t cut the geometry. May i know which node i need to add in? [Cut floor slab with link family.dyn](https://forum.dynamobim.com/uploads/short-url/lcDfJ5koAOrod025a17zzSwqqPE.dyn) (14.8 KB)  
Thanks you.[Revit 2018 files](https://we.tl/t-578ksKfSkp)

with Regards,  
Moe Moe