Hey does anybody know how to fix when the nozzle scrapes the bed while printing earlier i had a giant blob attached on the nozzle and when i removed it i noticed that when i printed something it seemed to make the layers really thin and would scrape the bed i use a a1 combo and would like assistance because this issue had me scratching my head for hours i had tried bed leveling calibration in the handy and still cant find out why it scrapes