# Odd Z axis problem

**URL:** <https://forum.onefinitycnc.com/t/odd-z-axis-problem/27010>\
**Category:** Elite Series (Masso & Redline) (Gen 1)\
**Created:** [May 14, 2024, 4:29am UTC](https://forum.onefinitycnc.com/t/odd-z-axis-problem/27010 "2024-05-14T04:29:48Z")\
**Posts on this page:** 1\
**Showing post:** 9

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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:** [May 14, 2024, 1:56pm UTC](https://forum.onefinitycnc.com/t/odd-z-axis-problem/27010/9 "2024-05-14T13:56:27Z")

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Hey cvcolomb,

there can be many causes for loosing steps. [EMI](https://en.wikipedia.org/wiki/Electromagnetic_interference) is one of them. I noticed the EM60 VFD housing is neither made of metal nor is the VFD enclosed into a steel control cabinet, despite the fact that a VFD is a device intended to be installed in a [VFD control cabinet](https://forum.onefinitycnc.com/t/hey-is-this-your-vfd-enclosure/10130/3) (which serves as [faraday cage](https://en.wikipedia.org/wiki/Faraday_cage)). Also all Onefinity cables are not shielded. In industry, all motor and signal cables of a CNC machine are shielded and grounded to prevent EMI.

Have you searched for [Z plunge issue](https://forum.onefinitycnc.com/search?q=z%20plunge) in this forum?

> [@Z axis changing](https://forum.onefinitycnc.com/t/z-axis-changing/23841/9):
>
> See also:
> 
> - [Z Axis Moving Unexpectedly (Cutting too shallow or too deep)](https://forum.onefinitycnc.com/t/z-axis-moving-unexpectedly-cutting-too-shallow-or-too-deep/14829)
> - [Troubleshooting: Rail is getting hung, stuck, or out of alignment (x35/x50 machines)](https://forum.onefinitycnc.com/t/troubleshooting-rail-is-getting-hung-stuck-or-out-of-alignment/10826)
> - [Support: How to Access the inner tube motor wire](https://www.youtube.com/watch?v=YyB5QJ7neVQ)
> - [Support: How to determine if a wire or motor is damaged](https://forum.onefinitycnc.com/t/support-how-to-determine-if-a-wire-or-motor-is-damaged/18446)

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