Hi, I use an Ender 3 Max and it works great with PLA, but when I print TPU 85A (NinjaFlex) [2], I could not print a layer without it getting tangled in the Extruder. The problem seems to be that it is not as stiff as PLA and hence bends and makes loops when the Extruder tries to push it into the Bowden tube. The printer's description [1] states that it would be able to print TPU. Am I doing something wrong? References [1] https://www.creality.com/goods-detail/creality-ender-3-max-3d-printer [2] https://ninjatek.com/shop/ninjaflex/