Printing fail

my son was too lazy! he "forgot" to make the right adjustments of the printer bed and the filament was irritated and ruined the print...
he aborted the 42 hours print after almost 4 hours...and printed another part for hisself...i was really pissed!!

time to take him the printer away! or buy another one for myself...so i can do and print what i want...until now it´s a father and son printer. we shared the costs...