# Random position shifts

**URL:** <https://forum.onefinitycnc.com/t/random-position-shifts/13132>\
**Category:** Controller (Buildbotics) Discussion\
**Created:** [May 16, 2022, 7:58pm UTC](https://forum.onefinitycnc.com/t/random-position-shifts/13132 "2022-05-16T19:58:29Z")\
**Posts on this page:** 1\
**Showing post:** 18

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**Author:** ![TheyCallMeJohn](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/theycallmejohn/32/7657_2.png) [@TheyCallMeJohn](https://forum.onefinitycnc.com/u/TheyCallMeJohn)\
**Post date:** [May 17, 2022, 7:49pm UTC](https://forum.onefinitycnc.com/t/random-position-shifts/13132/18 "2022-05-17T19:49:57Z")

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John,  
I would check grounding as well. I had some controller issues (not skipping steps) but they have pretty much gone away since I grounded the machine and the dust collection line. Well doing that I realized I had shorted wire in one of my Y rails. Onefinity promptly replaced and it and it has bene pretty smooth sailing since then.

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