# Trim away the fins

**URL:** https://discourse.shapr3d.com/t/trim-away-the-fins/23905
**Category:** Modeling Questions
**Created:** [February 2, 2023, 1:16pm UTC](https://discourse.shapr3d.com/t/trim-away-the-fins/23905 "2023-02-02T13:16:13Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![DigitalM](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/digitalm/32/18932_2.png) [@DigitalM](https://discourse.shapr3d.com/u/DigitalM)
#### Post date: [February 2, 2023, 1:16pm UTC](https://discourse.shapr3d.com/t/trim-away-the-fins/23905/1 "2023-02-02T13:16:13Z")

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How do I remove the parts of the fins that fall outside of the cylinder?

 ![CleanShot 2023-02-02 at 13.03.26](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/e/6/e6f6f1625d192817f6cf6c41772cbb1640f1a759.png)

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### Author: ![DigitalM](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/digitalm/32/18932_2.png) [@DigitalM](https://discourse.shapr3d.com/u/DigitalM)
#### Post date: [February 2, 2023, 2:59pm UTC](https://discourse.shapr3d.com/t/trim-away-the-fins/23905/2 "2023-02-02T14:59:33Z")

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Figured it out using ‘Split Bodies’ – had to do it five times, I may have been able to speed it up by doing a union? Anyway, pretty straightforward compared to my experience of SketchUp and Fusion360!

 ![CleanShot 2023-02-02 at 14.01.38](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/8/d/8d2dc9a3c31f4c9aecffdab1acf79d6fc7a91d38.png)

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### Author: ![Laci\_K](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/laci_k/32/8196_2.png) [@Laci\_K](https://discourse.shapr3d.com/u/Laci_K)
#### Post date: [February 2, 2023, 3:08pm UTC](https://discourse.shapr3d.com/t/trim-away-the-fins/23905/3 "2023-02-02T15:08:41Z")

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I think you could have selected all the fins at one step, and cut them together.