I'm new to 3D printing. With Anycubic 4Max Pro seems everything is fine, print quality is great, but the biggest issue I have is removing filament. That happens with PLA, Flex and finally I tried to clean nozzle as "3D Printing Nerd" suggested with Nylon - everything was fine until I tried to pull filament at 70C. It was nightmare. PLA (green) and Flex (transparent) Nylon Is it something wrong with Titan extruder design? When plastic touches cold metal wheels it obviously hardens. The biggest problems I have: every time it requires full disassembly. I cannot see anything inside extruder and I cannot easily remove jams.