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How to fix a loose Z Axis

Hi OOznest staff,

I am facing a quite bad issue with my Workbee that I don't know how to fix.

As you can see in the video, my Z axis is relly unstable causing serious precision problems. I tried to tight the Eccentric-Spacers but it doesn't help.

It really seems that I have to replace the "main" m5 30mm screws... but I really would like to avoid such a delicate task because would involve to disassemble half of the machine.

I was wondering if know what generally causes this issue and if there is an alternative way to fix it. Open to any suggestion!

Thank you very much for the support.

Julien

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Hi Julien,

Thanks for your message.

Normally adjusting the eccentric spacers fixes this. Try adjusting them using this method:

- Set all the eccentric spacers to their widest position
- Slightly loosen the bolts holding wheels on the aluminium spacer side
- Adjust the eccentric spacers so all the wheels (both sides) are slightly touching the extrusion.
- Tighten the bolts holding wheels on the aluminium space side
- Check the eccentric spacers so all the wheels (both sides) are slightly touching the extrusion.

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Thanks! Seems that it worked.

What I did:

  • Unmount the front panel where the Z axis is actually mounted on (it's just 4 screws, took 1 min)
  • Loose the screw
  • Move the 6mm text of the eccentric spacer on the right
  • Tight the screw again
  • Adjust the spacer

Hope that it will be useful for someone else in the future

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Author avatar Julien Moro will be eternally grateful.
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