# X axis is locked up?

**URL:** <https://forum.onefinitycnc.com/t/x-axis-is-locked-up/11675>\
**Category:** Troubleshooting (X35/X50)\
**Created:** [March 5, 2022, 8:48pm UTC](https://forum.onefinitycnc.com/t/x-axis-is-locked-up/11675 "2022-03-05T20:48:15Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Millerjill](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@Millerjill](https://forum.onefinitycnc.com/u/Millerjill)\
**Post date:** [March 5, 2022, 8:48pm UTC](https://forum.onefinitycnc.com/t/x-axis-is-locked-up/11675/1 "2022-03-05T20:48:15Z")

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First time running the machine for real, trying to flatten the wasteboard. The program was running, everything was great. Then randomly the x axis started jogging and not moving at all. So i stopped the program and started checking everything. No error code popped up and the y and z axis move perfectly fine. Now the x axis will move maybe a few millimeters up and down but it is definitely struggling and wont go any further. Also tried manually moving the x axis with machine turned off and no luck; seems as if the axis is physically locked up. Anybody have any experience with this issue? Or have any ideas on what to try? Also note, our machine is mounted on the wall so that may be causing a problem as well? Just strange that it was running great and then stopped.

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**Author:** ![Clinket](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/clinket/32/30_2.png) [@Clinket](https://forum.onefinitycnc.com/u/Clinket)\
**Post date:** [March 5, 2022, 11:25pm UTC](https://forum.onefinitycnc.com/t/x-axis-is-locked-up/11675/2 "2022-03-05T23:25:24Z")

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My first guess would be a loose connection in the wiring. I had a similar issue and one of the pins in the connector that went into the controller had pushed back. After I pushed it back in all the way, it locked itself in and the problem went away. Stepper motors act weird with intermittent connections on one wire.

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**Author:** ![Kwest2208](https://avatars.discourse-cdn.com/v4/letter/k/ce73a5/32.png) [@Kwest2208](https://forum.onefinitycnc.com/u/Kwest2208)\
**Post date:** [March 6, 2022, 3:52am UTC](https://forum.onefinitycnc.com/t/x-axis-is-locked-up/11675/3 "2022-03-06T03:52:51Z")

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I just went through this with my new x-50. I would email support. They will send you a troubleshooting link. Mine ended up being that the nut on the end of the screw shaft was about 1/2 turn to tight. The washer behind it should just barely spin freely.

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**Author:** ![Kwest2208](https://avatars.discourse-cdn.com/v4/letter/k/ce73a5/32.png) [@Kwest2208](https://forum.onefinitycnc.com/u/Kwest2208)\
**Post date:** [March 6, 2022, 3:54am UTC](https://forum.onefinitycnc.com/t/x-axis-is-locked-up/11675/4 "2022-03-06T03:54:28Z")

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> [@Troubleshooting: Rail is getting hung, stuck, grinding, or moving in opposite direction](https://forum.onefinitycnc.com/t/troubleshooting-rail-is-getting-hung-stuck-or-out-of-alignment/10826):
>
> Rail is getting hung/stuck/grinding. Special notes to read before following each step: A rail getting stuck/hung is typically one of two things, either a wire/connection issue or the grub screw on the ball screw isn’t tight on the side that isn’t moving. One thing to remember, stall homing adjustments do NOT affect rail movement during cutting or jogging. If the rail isn’t moving correctly during cutting or jogging, incorrect stall homing is an affect of this greater issue. Any time the axis …