You have left Pro rails after MGN upgrade? Use the Pro rails on Z!
Extrusion 2020 needed for bed:
2x 260mm
2x 410mm
4x brackets
Extrusion 2020 needed to mount the Pro rails:
2x 530
4x brackets
“Pro Z Mount x” is to use the X-rail as well for 3 z-Setup
The author marked this model as their own original creation.