# \_Box -\> \_ToSubD conversion issue on creasing

**URL:** <https://discourse.mcneel.com/t/box-tosubd-conversion-issue-on-creasing/100996>\
**Category:** SubD\
**Created:** [April 27, 2020, 9:55pm UTC](https://discourse.mcneel.com/t/box-tosubd-conversion-issue-on-creasing/100996 "2020-04-27T21:55:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sculptn](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/sculptn/32/669872_2.png) [@sculptn](https://discourse.mcneel.com/u/sculptn)\
**Post date:** [April 27, 2020, 9:55pm UTC](https://discourse.mcneel.com/t/box-tosubd-conversion-issue-on-creasing/100996/1 "2020-04-27T21:55:38Z")

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Hi All,  
Just noticed this today. When extruding a Box, I clicked on \_ToSubD and found that not all edges remained creased. one edge in particular was uncreased. I tried changing the import choices but still had the same results.  
While choosing the import:

 ![extrude box to subd-choosing](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/0/a/0ac52446a334a0e8a9d284cd672cc04a35161735.jpeg)

After Choosing:

 ![extrude box to subd-chosen](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/4/e/4ef828fb3879b1de51ddb3acbce55f997faef5d8.jpeg)

And the parts pulled apart to make it easier to see.  
 ![extrude box to subd-chosen-pulled apart](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/8/2/8260ebac35d89a0adf8a5a0e3d18087fbeae07a1.jpeg)

file:  
[extrudeBox-SubD-Error.3dm](https://discourse.mcneel.com/uploads/short-url/hAnpNhagIi25SsvwYBBtmttQQXW.3dm) (77.2 KB)

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<div class="post-metadata">

**Author:** ![Eugen](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/eugen/32/656992_2.png) [@Eugen](https://discourse.mcneel.com/u/Eugen)\
**Post date:** [April 29, 2020, 8:32am UTC](https://discourse.mcneel.com/t/box-tosubd-conversion-issue-on-creasing/100996/2 "2020-04-29T08:32:52Z")

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Same here. One edge remains uncreased.  
7.0.20119.13305

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**Author:** ![BrianJ](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/brianj/32/751593_2.png) [@BrianJ](https://discourse.mcneel.com/u/BrianJ)\
**Post date:** [April 29, 2020, 1:14pm UTC](https://discourse.mcneel.com/t/box-tosubd-conversion-issue-on-creasing/100996/3 "2020-04-29T13:14:50Z")

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Thanks, filed as [https://mcneel.myjetbrains.com/youtrack/issue/RH-58161](https://mcneel.myjetbrains.com/youtrack/issue/RH-58161)