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Always failed to print Ninjaflex with my UM3, HELP!!!!!

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Have you checked the filament when doing an unload? I assume that the pressure is too high in the feeder and the filament too soft. Additionally the friction in the Bowden tube is much higher than with normal material. I read somewhere that someone put a drop of oil in the tube to reduce friction, but I am not sure if this is really a good idea.


I have only experience with TPU from Ultimaker, worked fine, but is harder as Ninjaflex.

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