# Help with STL export

**URL:** <https://discourse.slicer.org/t/help-with-stl-export/37401>\
**Category:** Support\
**Created:** [July 16, 2024, 2:05pm UTC](https://discourse.slicer.org/t/help-with-stl-export/37401 "2024-07-16T14:05:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Romulo\_Alfaro](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/romulo_alfaro/32/77327_2.png) [@Romulo\_Alfaro](https://discourse.slicer.org/u/Romulo_Alfaro)\
**Post date:** [July 16, 2024, 2:05pm UTC](https://discourse.slicer.org/t/help-with-stl-export/37401/1 "2024-07-16T14:05:33Z")

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![Captura de pantalla 2024-07-16 a la(s) 2.32.33 a. m.](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/0/8/089d5356c5b88e8415fe5247ca30ccb1ea95b134.jpeg)  
Hello, can someone help me please. I am using the DentalSegmentator Extension but the meshes come out inverted. I’ve been trying to change the settings for several hours but I haven’t been able to solve it. I thank you for your responses.

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**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [July 17, 2024, 8:23am UTC](https://discourse.slicer.org/t/help-with-stl-export/37401/2 "2024-07-17T08:23:49Z")

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If you run an Auto-orient normals on the mesh in the Surface Toolbox module, does it help?

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**Author:** ![Romulo\_Alfaro](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/romulo_alfaro/32/77327_2.png) [@Romulo\_Alfaro](https://discourse.slicer.org/u/Romulo_Alfaro)\
**Post date:** [July 17, 2024, 8:46am UTC](https://discourse.slicer.org/t/help-with-stl-export/37401/3 "2024-07-17T08:46:32Z")

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Thanks for answering. I’m afraid I’ve already tried that.

[This Link](https://discourse.slicer.org/t/dentalsegmentator-result-mesh-is-inverted/37408/2)