# Union failing

**URL:** <https://discourse.shapr3d.com/t/union-failing/3897>\
**Category:** Modeling Questions\
**Created:** [January 26, 2019, 5:05am UTC](https://discourse.shapr3d.com/t/union-failing/3897 "2019-01-26T05:05:17Z")\
**Posts on this page:** 14\
**Page:** 1

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**Author:** ![Mpro](https://avatars.discourse-cdn.com/v4/letter/m/e95f7d/32.png) [@Mpro](https://discourse.shapr3d.com/u/Mpro)\
**Post date:** [January 26, 2019, 5:05am UTC](https://discourse.shapr3d.com/t/union-failing/3897/1 "2019-01-26T05:05:17Z")

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Hello  
I have a weird shape that I copied and I’m trying to use try union function but it’s giving strange errors: Boolean failed, something went wrong,…

I have the object pretty small and can send it over in shapr format, just need to know how or where

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**Author:** ![DanielR](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/danielr/32/582_2.png) [@DanielR](https://discourse.shapr3d.com/u/DanielR)\
**Post date:** [January 26, 2019, 8:27am UTC](https://discourse.shapr3d.com/t/union-failing/3897/2 "2019-01-26T08:27:52Z")

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Hi,

just export it and send it to [support@shapr3d.com](mailto:support@shapr3d.com)

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**Author:** ![hamedtopic](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/hamedtopic/32/3371_2.png) [@hamedtopic](https://discourse.shapr3d.com/u/hamedtopic)\
**Post date:** [January 26, 2019, 10:46am UTC](https://discourse.shapr3d.com/t/union-failing/3897/3 "2019-01-26T10:46:12Z")

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Having the same problem as follows:

[https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/7/75959a2bccc3f80af22b4cdefff4d6c89b55d938.MOV](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/7/75959a2bccc3f80af22b4cdefff4d6c89b55d938.MOV)
  

[https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/3/33df1b2db0e5af92b3b14a8a728e693fcc9140a6.MOV](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/3/33df1b2db0e5af92b3b14a8a728e693fcc9140a6.MOV)

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**Author:** ![DanielR](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/danielr/32/582_2.png) [@DanielR](https://discourse.shapr3d.com/u/DanielR)\
**Post date:** [January 26, 2019, 11:00am UTC](https://discourse.shapr3d.com/t/union-failing/3897/4 "2019-01-26T11:00:04Z")

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Got the file as well - we will look at the issue

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**Author:** ![hamedtopic](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/hamedtopic/32/3371_2.png) [@hamedtopic](https://discourse.shapr3d.com/u/hamedtopic)\
**Post date:** [January 26, 2019, 11:00am UTC](https://discourse.shapr3d.com/t/union-failing/3897/5 "2019-01-26T11:00:24Z")

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Sent to support team!😊

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**Author:** ![Mpro](https://avatars.discourse-cdn.com/v4/letter/m/e95f7d/32.png) [@Mpro](https://discourse.shapr3d.com/u/Mpro)\
**Post date:** [January 26, 2019, 4:22pm UTC](https://discourse.shapr3d.com/t/union-failing/3897/6 "2019-01-26T16:22:28Z")

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> [@DanielR](#):
>
> [support@shapr3d.com](mailto:support@shapr3d.com)

I just sent mine as well just now (#3760). interestingly, I created another one from scratch and same thing happen; I also managed to get a new error message " Non-manifold result"

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**Author:** ![DanielR](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/danielr/32/582_2.png) [@DanielR](https://discourse.shapr3d.com/u/DanielR)\
**Post date:** [January 26, 2019, 5:15pm UTC](https://discourse.shapr3d.com/t/union-failing/3897/7 "2019-01-26T17:15:44Z")

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Thanks - we will look at this. At first glance I think the problem here is that the result body would be non-manifold. Here is a quick article on what it is: [https://www.sculpteo.com/blog/2017/10/18/how-to-fix-non-manifold-geometry/](https://www.sculpteo.com/blog/2017/10/18/how-to-fix-non-manifold-geometry/)

Nonetheless, we will have a look at your file as well 🙂

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**Author:** ![Mpro](https://avatars.discourse-cdn.com/v4/letter/m/e95f7d/32.png) [@Mpro](https://discourse.shapr3d.com/u/Mpro)\
**Post date:** [January 26, 2019, 5:37pm UTC](https://discourse.shapr3d.com/t/union-failing/3897/8 "2019-01-26T17:37:05Z")

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thanks. the one I sent doesn’t give the manifold message (the new one I recreated does) but sure please c heck and let me know

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**Author:** ![Mpro](https://avatars.discourse-cdn.com/v4/letter/m/e95f7d/32.png) [@Mpro](https://discourse.shapr3d.com/u/Mpro)\
**Post date:** [February 6, 2019, 2:43am UTC](https://discourse.shapr3d.com/t/union-failing/3897/9 "2019-02-06T02:43:46Z")

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I don’t think anyone has replied to me on this. Also not on the ticket

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**Author:** ![DanielR](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/danielr/32/582_2.png) [@DanielR](https://discourse.shapr3d.com/u/DanielR)\
**Post date:** [February 6, 2019, 4:39pm UTC](https://discourse.shapr3d.com/t/union-failing/3897/10 "2019-02-06T16:39:33Z")

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Hi - you are not going to be able to union those bodies because they would be non-manifold. I’ve showed it to the devs as well.

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**Author:** ![hamedtopic](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/hamedtopic/32/3371_2.png) [@hamedtopic](https://discourse.shapr3d.com/u/hamedtopic)\
**Post date:** [February 6, 2019, 7:39pm UTC](https://discourse.shapr3d.com/t/union-failing/3897/11 "2019-02-06T19:39:26Z")

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What about me dear Daniel?! Is there sth ?!

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**Author:** ![DanielR](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/danielr/32/582_2.png) [@DanielR](https://discourse.shapr3d.com/u/DanielR)\
**Post date:** [February 7, 2019, 10:22am UTC](https://discourse.shapr3d.com/t/union-failing/3897/12 "2019-02-07T10:22:58Z")

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Hi Hamed - devs looked at it as well and gives the same error message in the background. Your imported file is mesh to step, and it doesn’t have any thickness, so by definition it can only be non-manifold.

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**Author:** ![hamedtopic](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/hamedtopic/32/3371_2.png) [@hamedtopic](https://discourse.shapr3d.com/u/hamedtopic)\
**Post date:** [February 7, 2019, 10:48am UTC](https://discourse.shapr3d.com/t/union-failing/3897/13 "2019-02-07T10:48:52Z")

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That’s right but as you saw, the problem is that (imported minus body) works but not (body minus imported), then why?! As a matter of fact, in both cases the impoted file has no thicknesses

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<div class="post-metadata">

**Author:** ![DanielR](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/danielr/32/582_2.png) [@DanielR](https://discourse.shapr3d.com/u/DanielR)\
**Post date:** [October 31, 2019, 12:01pm UTC](https://discourse.shapr3d.com/t/union-failing/3897/15 "2019-10-31T12:01:46Z")

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