# Can't Export to STL

**URL:** <https://discourse.slicer.org/t/cant-export-to-stl/7632>\
**Category:** Support\
**Tags:** segmentation, dicom\
**Created:** [July 17, 2019, 3:05pm UTC](https://discourse.slicer.org/t/cant-export-to-stl/7632 "2019-07-17T15:05:23Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![harsh](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/harsh/32/82533_2.png) [@harsh](https://discourse.slicer.org/u/harsh)\
**Post date:** [July 17, 2019, 3:05pm UTC](https://discourse.slicer.org/t/cant-export-to-stl/7632/1 "2019-07-17T15:05:23Z")

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I have tried to export a nrrd file of a large CT scan that I have gotten, I go to segment editor and then select the segment I want via the threshold function… I try to do ‘show 3D’ and it doesn’t work. I have 64gb  
(upgraded from 32gb) of ram available and a 500gb ssd.I want a STL of this. Any Idea how?

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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, 2019, 3:07pm UTC](https://discourse.slicer.org/t/cant-export-to-stl/7632/2 "2019-07-17T15:07:27Z")

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> [@harsh](#):
>
> it doesn’t work

Please elaborate on what happens instead.  
Is there anything in the log? (About / Report an error)

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<div class="post-metadata">

**Author:** ![harsh](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/harsh/32/82533_2.png) [@harsh](https://discourse.slicer.org/u/harsh)\
**Post date:** [July 17, 2019, 3:25pm UTC](https://discourse.slicer.org/t/cant-export-to-stl/7632/3 "2019-07-17T15:25:58Z")

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application either crashes and force closes itself or goes to bad allocation, I feel as I am doing something wrong setting up the file.

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<div class="post-metadata">

**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, 2019, 3:29pm UTC](https://discourse.slicer.org/t/cant-export-to-stl/7632/4 "2019-07-17T15:29:38Z")

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Is there anything in the log? (About / Report an error)

What is the resolution of the CT?

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<div class="post-metadata">

**Author:** ![harsh](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/harsh/32/82533_2.png) [@harsh](https://discourse.slicer.org/u/harsh)\
**Post date:** [July 17, 2019, 3:47pm UTC](https://discourse.slicer.org/t/cant-export-to-stl/7632/5 "2019-07-17T15:47:04Z")

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> [@cpinter](#):
>
> Is there anything in the log? (About / Report an error)

no.  
the resolution of the CT is really high, I’m not sure what it is exactly though however…

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<div class="post-metadata">

**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, 2019, 3:53pm UTC](https://discourse.slicer.org/t/cant-export-to-stl/7632/6 "2019-07-17T15:53:22Z")

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You can check the resolution in the Volumes module.

If you disable smoothing (checkbox in the dropbown menu of the Show 3D button) then does it show up?

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 19, 2019, 4:11am UTC](https://discourse.slicer.org/t/cant-export-to-stl/7632/7 "2019-07-19T04:11:58Z")

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> [@harsh](#):
>
> the resolution of the CT is really high

You may need to increase virtual memory size in your system settings (e.g., try to set it to 10x larger than the size of your CT image).