You spend hours troubleshooting under intermittent extrusion on your Ender Pro 3, redesigning thinking it's a 3d model problem. Tweaking slicer settings thinking that may be ut, bad filament maybe? Nope. Cracked extrusion tension arm.... This is why all manufacturer parts should be metal. #Creality3D #3dprintingcommunity #plafilament #enderpro3 #3dprinting