# Need help with cutting a hatch from a cylinder

**URL:** <https://discourse.shapr3d.com/t/need-help-with-cutting-a-hatch-from-a-cylinder/41042>\
**Category:** Modeling Questions\
**Created:** [June 14, 2026, 9:52pm UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-a-hatch-from-a-cylinder/41042 "2026-06-14T21:52:43Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mmcneil](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mmcneil/32/35897_2.png) [@mmcneil](https://discourse.shapr3d.com/u/mmcneil)\
**Post date:** [June 14, 2026, 9:52pm UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-a-hatch-from-a-cylinder/41042/1 "2026-06-14T21:52:43Z")

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Hi. I 'm looking to get some help with cutting a shape that I projected onto a cylinder. Basically I’ve created a cylinder that’s 28mm in diameter and projected a vertical rectangle onto it. What I want to do is cut a door or hatch from the cylinder, that I can snap into place. So in the screenshot below, the highlighted section is what I want to remove from the cylinder, but I want to keep that shape to use to cover the area that was removed. I hope I’m making sense. Thanks!

 ![Screenshot 2026-06-14 at 2.41.04 PM](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/7/c/7ce5987a5f248d733afb1ba09e77e6f610b8e860.jpeg)

 ![Screenshot 2026-06-14 at 2.40.42 PM](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/f/8/f8c13f86724493680ecde35f99b97b8105788b62.jpeg)

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**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [June 14, 2026, 10:10pm UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-a-hatch-from-a-cylinder/41042/2 "2026-06-14T22:10:07Z")

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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:** [June 15, 2026, 1:43am UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-a-hatch-from-a-cylinder/41042/3 "2026-06-15T01:43:35Z")

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Here’s an alternate method using the **Project** tool. I purposely made the door thick to highlight the sides that are angled normal to the center of the cylinder. Alex’s method is fine for a door that moves straight in for a snap fit whereas mine does not. The difference is, mine can be hinged to one side if desired. Now you have two methods that work per your initial request.

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**Author:** ![mmcneil](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mmcneil/32/35897_2.png) [@mmcneil](https://discourse.shapr3d.com/u/mmcneil)\
**Post date:** [June 15, 2026, 1:57pm UTC](https://discourse.shapr3d.com/t/need-help-with-cutting-a-hatch-from-a-cylinder/41042/4 "2026-06-15T13:57:14Z")

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@Xdrakosha @TigerMike Thank you both so very much!!! This is exactly what I was looking to do. I really appreciate both of you taking the time to help me with this.🙌