Z axis 2418 CNC for 52mm spindel

Z axis parts for 52mm diameter spindel bought from AliExpress. You can use aluminium holder from bundle or print this one from files. It is more lightweght, but not so rock solid. Use 8mm drill bit to make hole wider. But do it carefully, moving parts must be tight enough. I used silicone oil and it works perfect on my CNC.