Creality Printer Spaghetti Due to Nozzle Collision

Check for a nozzle collision by inspecting the print model for signs of upward curling at the edges, particularly on overhangs or thin walls. Examine the print head assembly for any mechanical looseness. If the model is found displaced near the center or back of the plate, and there are visible scarring marks on the printed layers, the nozzle likely struck a warped section of the print during a travel movement.

Sources