Could someone give me the right firmware because i tried everything to levelling the printer but nothing happened right. I tried levelling the printer with two different firmwares for this printer, with Arduino, the first one wasn’t working at all , the second was looking good but infortunately when i wrote in pentium to move down( G1 Z100) after that what i wrote G1 Z1 or G1 Z-1 , the printer crash into the heat bed . I will be very relieve if you could help me!