# Import stl object

**URL:** <https://discourse.slicer.org/t/import-stl-object/16620>\
**Category:** Support\
**Created:** [March 18, 2021, 4:56pm UTC](https://discourse.slicer.org/t/import-stl-object/16620 "2021-03-18T16:56:24Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Jmarcs](https://avatars.discourse-cdn.com/v4/letter/j/43a26b/32.png) [@Jmarcs](https://discourse.slicer.org/u/Jmarcs)\
**Post date:** [March 18, 2021, 4:56pm UTC](https://discourse.slicer.org/t/import-stl-object/16620/1 "2021-03-18T16:56:24Z")

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Operating system:  
Slicer version 4.11  
I would like to import stl object (and mix with cbct) and work with editing option. But the software doesnt convert stl to labelmodel in good quality. Do you have a solution to import and convert to binary labelmap with the same quality than the stl file  
Maybe you have another solution  
best regards .

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [March 18, 2021, 6:13pm UTC](https://discourse.slicer.org/t/import-stl-object/16620/2 "2021-03-18T18:13:42Z")

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Converting from a surface representation to a labelmap will always result in discretization (stairstep) issues. You can choose the resolution with the Segmentation geometry dialog in the Segment Editor before importing the model as a segment.

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<div class="post-metadata">

**Author:** ![Jmarcs](https://avatars.discourse-cdn.com/v4/letter/j/43a26b/32.png) [@Jmarcs](https://discourse.slicer.org/u/Jmarcs)\
**Post date:** [March 18, 2021, 6:39pm UTC](https://discourse.slicer.org/t/import-stl-object/16620/3 "2021-03-18T18:39:43Z")

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thanks but do you have a link(movie tuto …) about subject

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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:** [March 26, 2021, 2:51am UTC](https://discourse.slicer.org/t/import-stl-object/16620/4 "2021-03-26T02:51:48Z")

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See detailed instructions [here](https://slicer.readthedocs.io/en/latest/user_guide/modules/segmenteditor.html#generated-surface-contains-step-artifacts).