Hi guys. I'm using Marlin RC7 and I enabled Auto Bed Leveling Grid option. I'm using a proximity sensor LJ12A3-4-ZBX and an MK3 Heated Bed. But the problem is that when the nozzle should go up it goes down and when the nozzle should go down it goes up. I have a drawing where I have show the movement of my coreXY axis. Does the assembly of my Z axis motors like on the old Mendel printers can affect this process? My printer works fine and execute all the movement as I order.
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