# Substract context mesh from aechitectural Body

**URL:** <https://discourse.shapr3d.com/t/substract-context-mesh-from-aechitectural-body/9372>\
**Category:** Modeling Questions\
**Created:** [October 17, 2020, 11:07am UTC](https://discourse.shapr3d.com/t/substract-context-mesh-from-aechitectural-body/9372 "2020-10-17T11:07:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Lux27](https://avatars.discourse-cdn.com/v4/letter/l/f04885/32.png) [@Lux27](https://discourse.shapr3d.com/u/Lux27)\
**Post date:** [October 17, 2020, 11:07am UTC](https://discourse.shapr3d.com/t/substract-context-mesh-from-aechitectural-body/9372/1 "2020-10-17T11:07:32Z")

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Hi, I’m using Shapr3D as architect, and cannot find a way to substract the context sheet mesh body (stl format) from a created body to print it properly (so that the base of the body fit the profile of the context when printed). Have you any ideas?  
Thanks!!

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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:** [October 17, 2020, 7:43pm UTC](https://discourse.shapr3d.com/t/substract-context-mesh-from-aechitectural-body/9372/2 "2020-10-17T19:43:55Z")

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Hi, the Subtract tool can interact with closed meshes and solid bodies, have you tried it?

> **[Can I modify mesh files in Shapr3D?](https://support.shapr3d.com/hc/en-us/articles/360024315354-Can-I-modify-mesh-files-in-Shapr3D-)**
>
> Save your mesh data in an STL file, and import it into Shapr3D.
> You can use the mesh data as a reference for your design with solid bodies, or modify it with boolean tools (Intersect, Union, and Su...