# Help With Subtraction

**URL:** <https://discourse.shapr3d.com/t/help-with-subtraction/39859>\
**Category:** Modeling Questions\
**Created:** [November 27, 2025, 11:01pm UTC](https://discourse.shapr3d.com/t/help-with-subtraction/39859 "2025-11-27T23:01:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Commander](https://avatars.discourse-cdn.com/v4/letter/c/df705f/32.png) [@Commander](https://discourse.shapr3d.com/u/Commander)\
**Post date:** [November 27, 2025, 11:01pm UTC](https://discourse.shapr3d.com/t/help-with-subtraction/39859/1 "2025-11-27T23:01:12Z")

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I am trying to subtract an extruded body from 8 smaller bodies. They would be 4 bodies butthey would not Unionize.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/8/9/895633b049ab182b6bcde4a9820698d5ca79e0c7.jpeg)

This is just 2 of them emulation the problem.

I would show more images but I can only have one image in because I am new.

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**Author:** ![CurlyBee](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/curlybee/32/10580_2.png) [@CurlyBee](https://discourse.shapr3d.com/u/CurlyBee)\
**Post date:** [November 28, 2025, 6:01am UTC](https://discourse.shapr3d.com/t/help-with-subtraction/39859/2 "2025-11-28T06:01:28Z")

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I can’t really tell from the screen shot, but are you sure that the larger object is overlapping the small bodies underneath?

Which version are you using? Desktop or iPad? It’s been awhile since I’ve been on a desktop version, so I can’t tell right by the view.

There is an app called Loom where you can capture video and upload a link here. That might be helpful.