It doesn ' t really hit zero , don ' t think of it like that . The lunar year is 354 days , so if the month of Ramadan starts January 5 th one year , it ' ll come again December 24 th of the same year January 5 354 days . <| sep |> How are they going to top this next year ? !<| sep |> If i where to exaggerate then i would say that you have used 2 rolls of filament too much . However i won ' t and will instead share my favorite calibration model scalibration printer is a glorified glue gun until they fit together . You should probably start with learning as much as you can about calibration . I used Triffid Hunter ' s guide ' sCalibrationGuide it ' s a very good overall calibration guide . You can probably ignore the step calibrations as they seem to be for when you have built your own machine nonkit . The esteps calibration is the best thing that have happened to my 3 D printing life . Good luck , welcome to the 3 d printing stuff and stuff