# Trouble using union tool

**URL:** <https://discourse.shapr3d.com/t/trouble-using-union-tool/16334>\
**Category:** Modeling Questions\
**Created:** [December 14, 2021, 2:57am UTC](https://discourse.shapr3d.com/t/trouble-using-union-tool/16334 "2021-12-14T02:57:12Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Estalfos](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/estalfos/32/24279_2.png) [@Estalfos](https://discourse.shapr3d.com/u/Estalfos)\
**Post date:** [December 14, 2021, 2:57am UTC](https://discourse.shapr3d.com/t/trouble-using-union-tool/16334/1 "2021-12-14T02:57:13Z")

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Hi I have an issue to unite my final parts.  
Whenever I try to unite all of them in this model there is an error saying that the geometry is not possible, I think the issue is around the yellow parts but I really have no idea on what to do to fix it, I have tried different orders since that some times work and it does to some extent but by the end the error always shows up an I end up with 2 non fusible pieces.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/6/66902e703326baea4a4aaaf615aa2ff5682c1723.png)

I can’t attach the file SMH 😒  
Update: [Master sword.zip](https://discourse.shapr3d.com/uploads/short-url/4JZKpu7CPNEK76lA4BgmyIrBRP6.zip) (4.4 MB) 😊 here it is

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**Author:** ![Rohan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/rohan/32/15410_2.png) [@Rohan](https://discourse.shapr3d.com/u/Rohan)\
**Post date:** [December 14, 2021, 11:23am UTC](https://discourse.shapr3d.com/t/trouble-using-union-tool/16334/2 "2021-12-14T11:23:53Z")

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I had no issues to union it. I think you had selected all the parts at once and tried to union them. I have attached the file below 👇.  
[Archive.zip](https://discourse.shapr3d.com/uploads/short-url/belTwarLJjH7hKMmuAD8w6fZa5l.zip) (899.2 KB)

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**Author:** ![Estalfos](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/estalfos/32/24279_2.png) [@Estalfos](https://discourse.shapr3d.com/u/Estalfos)\
**Post date:** [December 14, 2021, 11:31am UTC](https://discourse.shapr3d.com/t/trouble-using-union-tool/16334/3 "2021-12-14T11:31:08Z")

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I did not, I actually tried adding one by one in different sequences:(

Thank you a lot !

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**Author:** ![Rohan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/rohan/32/15410_2.png) [@Rohan](https://discourse.shapr3d.com/u/Rohan)\
**Post date:** [December 14, 2021, 1:05pm UTC](https://discourse.shapr3d.com/t/trouble-using-union-tool/16334/4 "2021-12-14T13:05:10Z")

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By the way, the sword is awesome 🤩.

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**Author:** ![Estalfos](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/estalfos/32/24279_2.png) [@Estalfos](https://discourse.shapr3d.com/u/Estalfos)\
**Post date:** [December 15, 2021, 3:01am UTC](https://discourse.shapr3d.com/t/trouble-using-union-tool/16334/5 "2021-12-15T03:01:32Z")

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Thanks I love Zelda 😉