# Need help with cutting an object

**URL:** https://discourse.shapr3d.com/t/need-help-with-cutting-an-object/16192
**Category:** Modeling Questions
**Created:** [December 5, 2021, 12:04pm UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-an-object/16192 "2021-12-05T12:04:28Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![Needhelp](https://avatars.discourse-cdn.com/v4/letter/n/fbc32d/32.png) [@Needhelp](https://discourse.shapr3d.com/u/Needhelp)
#### Post date: [December 5, 2021, 12:04pm UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-an-object/16192/1 "2021-12-05T12:04:28Z")

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Hi,  
is it possible to cut the red object along the blue lines? They are each shown as individual sketch layers and i don‘t know how to unite them. Thank you 🙂

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/0/0e42a7395d61d79e78152c6af51cc3fef02c3500.jpeg)

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### Author: ![Needhelp](https://avatars.discourse-cdn.com/v4/letter/n/fbc32d/32.png) [@Needhelp](https://discourse.shapr3d.com/u/Needhelp)
#### Post date: [December 5, 2021, 1:06pm UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-an-object/16192/3 "2021-12-05T13:06:38Z")

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Thank you for your answer!  
I‘m sorry but my device won‘t let me post shapr files here…

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### Author: ![KPeter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/kpeter/32/7644_2.png) [@KPeter](https://discourse.shapr3d.com/u/KPeter)
#### Post date: [December 5, 2021, 2:12pm UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-an-object/16192/4 "2021-12-05T14:12:36Z")

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Hello @Needhelp! It is not possible to cut solid bodies with just contour lines, the inner face would remain undefined in this case. If you wish to cut a body, there are two options available:  
The first is to create a reference plane/face that can be used with the [Split Body](https://support.shapr3d.com/hc/en-us/articles/4406427864082-What-does-the-Split-Body-tool-do-) tool, then apply the tool to your selection. It can be a constraint here that you can select only one cutting face at a time.  
The second is to make the contours - even the segments of them - closed cross-sections, Loft/Extrude them, then use the boolean tools to split the body. This is a bit more complex solution, but as I see this is more suitable for your task.

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### Author: ![Needhelp](https://avatars.discourse-cdn.com/v4/letter/n/fbc32d/32.png) [@Needhelp](https://discourse.shapr3d.com/u/Needhelp)
#### Post date: [December 5, 2021, 2:24pm UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-an-object/16192/5 "2021-12-05T14:24:49Z")

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Thank you so much for your answer, this is very helpful !

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### Author: ![TigerMike](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tigermike/32/32650_2.png) [@TigerMike](https://discourse.shapr3d.com/u/TigerMike)
#### Post date: [December 5, 2021, 6:18pm UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-an-object/16192/6 "2021-12-05T18:18:00Z")

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For what it’s worth, here’s another method that works for your particular example. For cutting, I used a sketch plane at an angle. I made a duplicate body moved normal to the cut plane at a known distance. After the cuts, I moved it back into position.
