# GRBL error 33

**URL:** <https://community.inventables.com/t/grbl-error-33/96634>\
**Category:** Uncategorized\
**Created:** [July 27, 2020, 9:56pm UTC](https://community.inventables.com/t/grbl-error-33/96634 "2020-07-27T21:56:06Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![JuanASierra](https://avatars.discourse-cdn.com/v4/letter/j/7ba0ec/32.png) [@JuanASierra](https://community.inventables.com/u/JuanASierra)\
**Post date:** [July 27, 2020, 9:56pm UTC](https://community.inventables.com/t/grbl-error-33/96634/1 "2020-07-27T21:56:06Z")

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![GRBL error](https://canada1.discourse-cdn.com/flex009/uploads/inventables/original/3X/4/c/4cbf3e055ca1886b5ddc26557d5b4c6e1a354ec3.jpeg)

Can anybody help?  
Carve stoped on two different files.

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**Author:** ![NeilFerreri1](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/neilferreri1/32/84403_2.png) [@NeilFerreri1](https://community.inventables.com/u/NeilFerreri1)\
**Post date:** [July 28, 2020, 3:02am UTC](https://community.inventables.com/t/grbl-error-33/96634/2 "2020-07-28T03:02:43Z")

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> [@JuanASierra](#):
>
> Can anybody help?

Yes, but I need to know what software you’re using to generate the gcode. This is most likely a post processing issue with the arc calculation precision. If available, use the mm post processor.

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**Author:** ![JuanASierra](https://avatars.discourse-cdn.com/v4/letter/j/7ba0ec/32.png) [@JuanASierra](https://community.inventables.com/u/JuanASierra)\
**Post date:** [July 28, 2020, 5:42am UTC](https://community.inventables.com/t/grbl-error-33/96634/3 "2020-07-28T05:42:25Z")

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V-Carve Pro

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**Author:** ![PatrickDunne](https://avatars.discourse-cdn.com/v4/letter/p/a3d4f5/32.png) [@PatrickDunne](https://community.inventables.com/u/PatrickDunne)\
**Post date:** [July 28, 2020, 8:02am UTC](https://community.inventables.com/t/grbl-error-33/96634/4 "2020-07-28T08:02:07Z")

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I had problems after the last update on V-Carve Pro, the post-processor was giving problems, I got in touch with Vectric and they gave me a link to download a different post-processor, and everything was good after that

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**Author:** ![NeilFerreri1](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/neilferreri1/32/84403_2.png) [@NeilFerreri1](https://community.inventables.com/u/NeilFerreri1)\
**Post date:** [July 28, 2020, 3:06pm UTC](https://community.inventables.com/t/grbl-error-33/96634/5 "2020-07-28T15:06:48Z")

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> [@JuanASierra](#):
>
> V-Carve Pro

Use the metric post processor, use your old post processor (with no arcs), use one of [these](https://github.com/neilferreri/V-Carve-PPs/tree/master/GRBL%20Toolchange), or track down the post that @PatrickDunne is referring to.