Summary

Replacement for original Z Axis for cheap Chinese CNC Router with less movements in the rails.

link:
ebay.de/itm/Z-Achse-Lineareinheit-Slide-Motion-Kugelumlaufspindel-für-CNC-Graveur-60MM-12V/352867756409

ebay.de/itm/3AXIS-USB-CNC-PCB-Milling-Router-2417-Desktop-Engraver-FräSe-Graviermaschine/303254654620

All is screwed with M3 screws and M3 lock nuts.