Thanks for the response. But I didn't understand. Is my code wrong? I did a lot of experiment with Autolevel. I recently wrote these codes. The Auyolevel process is running. Autolevel Measures from certain points of the table. When it starts to print, moving the table up and down according to the slope, it should keep the distance between the nozzle and the table in each area. But because the table does not move up and down, the nozzle touches the table in some places, and nozzle stays above it with some places.