# Shell function not working well?

**URL:** <https://discourse.shapr3d.com/t/shell-function-not-working-well/966>\
**Category:** Modeling Questions\
**Created:** [May 10, 2017, 9:57pm UTC](https://discourse.shapr3d.com/t/shell-function-not-working-well/966 "2017-05-10T21:57:53Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mikberger](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mikberger/32/821_2.png) [@mikberger](https://discourse.shapr3d.com/u/mikberger)\
**Post date:** [May 10, 2017, 9:57pm UTC](https://discourse.shapr3d.com/t/shell-function-not-working-well/966/1 "2017-05-10T21:57:53Z")

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Hi,  
I’m studying the app and doing some exercises step by step.  
Please check the attached image and note that I want to apply the shell function to the object and erase the grey side.  
As you can see, I obtain a fail message. What should I do?  
Regards, mik

![](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/1X/fcc28b236705af1a8f98d6405dd3d3b4b7427238.PNG)

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**Author:** ![Gabor\_Shapr3D](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/gabor_shapr3d/32/235_2.png) [@Gabor\_Shapr3D](https://discourse.shapr3d.com/u/Gabor_Shapr3D)\
**Post date:** [May 11, 2017, 4:47am UTC](https://discourse.shapr3d.com/t/shell-function-not-working-well/966/2 "2017-05-11T04:47:07Z")

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That’s most probably a bug.

If you set the thickness to 0.1mm, it should work. If you have it at 1mm, it fails.

We are just working on a fix, it will be released in a few weeks (early June).

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<div class="post-metadata">

**Author:** ![mikberger](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mikberger/32/821_2.png) [@mikberger](https://discourse.shapr3d.com/u/mikberger)\
**Post date:** [May 11, 2017, 6:15am UTC](https://discourse.shapr3d.com/t/shell-function-not-working-well/966/3 "2017-05-11T06:15:08Z")

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Unfortunately it doesn’t succeed anyway. Any other advice or I’ll just have to wait for the update?  
Regards, Michael

![](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex002/uploads/shapr3d/original/1X/d091af927d3be88f51b88cfe8d4c3456144f710a.jpg)

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**Author:** ![Gabor\_Shapr3D](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/gabor_shapr3d/32/235_2.png) [@Gabor\_Shapr3D](https://discourse.shapr3d.com/u/Gabor_Shapr3D)\
**Post date:** [May 11, 2017, 6:50am UTC](https://discourse.shapr3d.com/t/shell-function-not-working-well/966/4 "2017-05-11T06:50:07Z")

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Do you have specific dimensions with this object or just created it randomly?

Also, did you create the shape using revolve or loft?

I can show you how you can create the shell if you send me some measurements so I can recreate the object.

The new release will definitely solve this issue.

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<div class="post-metadata">

**Author:** ![mikberger](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mikberger/32/821_2.png) [@mikberger](https://discourse.shapr3d.com/u/mikberger)\
**Post date:** [May 18, 2017, 5:43pm UTC](https://discourse.shapr3d.com/t/shell-function-not-working-well/966/5 "2017-05-18T17:43:22Z")

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Well, sometimes it succeeds, sometimes not. It actually seems to be a bug or, better, an intable functionality. Thank you anyway.