Three point bed leveling uses three independently driven lead screws to automatically level the bed and compensate for a bent or uneven plate. The Z-axis lead screws are used as the 3 points that make up a triangle, defining one plane. The advantage of a kinematic bed mount is that the defined plane of the bed, a kinematic mount, is that the aluminum plate can properly expand without bending the plate. https://3ddistributed.com/corexy-3d-printer/kinematic-bed-mounting/

Triple Z Setup Documentation https://sites.google.com/view/3d-distributed/solidcore-corexy/solidcore-z-axis/triple-z/triple-z-setup