hello! I got y-axis problems while printing. It seems like the printer does not know correctly the position of y-axis. The Printer worked fine. Then a fan made sounds. I opend the printer underneath, changed the fan and closed it. Just wanted to print something. And then this happens. (Attached pictures) I checked already the cables, they seem to sit correct. My printer is from kickstarter, no changes of firmware. Before changing the fan the printer worked fine. I proofed to print from files/models which worked correctly already. Thank you for suggestions.
If this keeps happening and is random: This looks like either a loose pulley or loose belt. You should check to see that all grub screws are adequately tight. If it only happened when you adjusted the fan, is it happening on new prints?