> For the complete documentation index, see [llms.txt](https://ms-kb.msd.unimelb.edu.au/next-lab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ms-kb.msd.unimelb.edu.au/next-lab/3d-printing/open-access-printers/prusa-open-access/hardware-glossary/z-axis.md).

# Z-Axis Stage

The Prusa uses dual integrated leadscrew motors to raise/lower the X gantry in the Z-Axis. With the Z-axis, the usual problems revolve around making sure the X gantry is being lifted equally on both sides and not tilted. This can be remedied with the in-built software with the MK3S. Steps to perform it can be found here:

{% embed url="<https://help.prusa3d.com/en/article/xyz-calibration-mk3-and-mk3s_112351>" %}
XYZ Calibration
{% endembed %}

![Z-Axis Stage. Image by Prusa](https://1820679795-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LXautSvCbUco5Lv7YrH%2F-MS0tDmsv5m0gt2SBRv3%2F-MS0y30mUdIXUw22xQ7u%2Fimage.png?alt=media\&token=a2dd805a-0b08-480d-b5e1-af3352ae1de5)

If you want to assemble/disassemble your Z-axis, read here:

{% embed url="<https://help.prusa3d.com/en/guide/4-z-axis-assembly_168629>" %}