Manual leveling bed in a 3d printer can be an extremely tedious task and at the beginning it is simply difficult. However, a well-leveled table is extremely important for proper execution of the printout. Bad bed leveling may lead to print not sticking to the bed. There may be gaps in the initial print layer or the layers will be too thin. Filament can accumulate around the nozzle as you print the first layers and numerous other problems. Therefore, the auto-leveling sensor can be a great help in this process.