I recently purchased a Tronxy X5SA-500-Pro printer and have been having troubles. Even after resetting to factory settings and leveling out the z-axis motors, the auto-leveling still says there are large discrepancies in the bed. These discrepancies are so large that moving the screws has little impact--the method that tronxy suggests to level the plate (fixing one large number in leveling resuby jg123 - CoreXY Machines