Hello, I know this is a bit of a "how long is a piece of string" question but here goes anyway: What would be the likely causes for extrusion to stop nearly 8 hours into a print? When i checked the filament had the loverly notch eaten out of it so i can only assume that it could not be pushed out of the nozel anymore so decided to feast on the filament. This is on a Titan Direct. I have had this before on shorter prints due to over extrusion but never after such a long period of time. It was E3D Everyday Black ABS 1.75mm. I am using a 0.4mm hardened steel nozzle with v6 hot ends. Fan was 0% so i would not expect rapid cooling preventing flow. I doubt over extrusion unless so minor it took 7-8 hours to build up. Any ideas?