# Path accuracy - max deviation

**URL:** <https://forum.onefinitycnc.com/t/path-accuracy-max-deviation/19022>\
**Category:** Controller (Buildbotics) Discussion\
**Created:** [February 25, 2023, 3:51pm UTC](https://forum.onefinitycnc.com/t/path-accuracy-max-deviation/19022 "2023-02-25T15:51:39Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ahandeman](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/ahandeman/32/22002_2.png) [@ahandeman](https://forum.onefinitycnc.com/u/ahandeman)\
**Post date:** [February 25, 2023, 3:51pm UTC](https://forum.onefinitycnc.com/t/path-accuracy-max-deviation/19022/1 "2023-02-25T15:51:39Z")

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How can we get the Maximum deviation setting to be saved and not reset to .05mm every time you refresh or reboot.

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [February 25, 2023, 4:21pm UTC](https://forum.onefinitycnc.com/t/path-accuracy-max-deviation/19022/2 "2023-02-25T16:21:44Z")

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Hey Troy,

modified ‘max-deviation’ survives system reboot and web page refresh. Did you forget to click the green “Save” button on the flyout menu?

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**Author:** ![ahandeman](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/ahandeman/32/22002_2.png) [@ahandeman](https://forum.onefinitycnc.com/u/ahandeman)\
**Post date:** [February 25, 2023, 4:29pm UTC](https://forum.onefinitycnc.com/t/path-accuracy-max-deviation/19022/3 "2023-02-25T16:29:33Z")

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it does not save below .05mm

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<div class="post-metadata">

**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [February 25, 2023, 4:45pm UTC](https://forum.onefinitycnc.com/t/path-accuracy-max-deviation/19022/4 "2023-02-25T16:45:18Z")

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Hey Troy,

you are right, I found it, it is restricted to 0.05 \<= max-deviation \<= 100 mm

I am not as deep in the code to be able to say why (I don’t use this cnc controller, I just have one here to have a look at it), but Onefinity stated they have a look at the Feature requests category regularly.