# STL question

**URL:** <https://discourse.shapr3d.com/t/stl-question/4515>\
**Category:** Modeling Questions\
**Created:** [April 12, 2019, 11:10pm UTC](https://discourse.shapr3d.com/t/stl-question/4515 "2019-04-12T23:10:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Macmanfan](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@Macmanfan](https://discourse.shapr3d.com/u/Macmanfan)\
**Post date:** [April 12, 2019, 11:10pm UTC](https://discourse.shapr3d.com/t/stl-question/4515/1 "2019-04-12T23:10:58Z")

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I am modeling an object and when saving the STL. When exporting an object there appears to be content missing. For example I save a version of a screw and the file is 200k. This slices and prints perfectly. Then I make a minor change such as adding a new screw driver slot and the new saved version is 600k and slices but does not print. Any clue.

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**Author:** ![Victor\_Shapr3D](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/victor_shapr3d/32/3502_2.png) [@Victor\_Shapr3D](https://discourse.shapr3d.com/u/Victor_Shapr3D)\
**Post date:** [April 13, 2019, 6:40pm UTC](https://discourse.shapr3d.com/t/stl-question/4515/2 "2019-04-13T18:40:42Z")

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Hello, try exporting the STL file using the STL export “Custom” setting and then try reducing the tolerance

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<div class="post-metadata">

**Author:** ![Macmanfan](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@Macmanfan](https://discourse.shapr3d.com/u/Macmanfan)\
**Post date:** [April 13, 2019, 8:57pm UTC](https://discourse.shapr3d.com/t/stl-question/4515/3 "2019-04-13T20:57:34Z")

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Sorry I stated this n reverse. The simple file is 600k. Then I add detail and the file size is smaller and won’t slice. I will try the custom export though.