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Bowden tube disconnecting from feeder


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Posted · Bowden tube disconnecting from feeder

I have a problem.  My bowden tube is disconnecting halfway a 14 hour print 


it is disconnecting fron the feeder


when i put the bowden back.  It us really stuck.  I can lift my printer on the tube if i want


But than again.  Same print. 14 hour.  Halway.  The tube is disconnected from the feeder.  And the filament is not entering.  

tried another coupling


bowden tube is new. (Upgraded the printhead. From 2 to 2+ )


tried different filament.   Petg pla.   At the moment i try it again.  With pla pro


thanks for any info

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    Posted · Bowden tube disconnecting from feeder

    At this point i am printing a new print 14 hour.  We are over halfway.  And no failure 

    i put another coupling on the bowden tube by the feeder


    so if this is the problem    Ihad 2 bad couplings in my upgrade kit ☹️☹️

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    Posted · Bowden tube disconnecting from feeder

    Anytime your bowden slips out like that you should also cut off 3mm from the end of the bowden so that the collet can bite into fresh bowden.  I know you replaced the bowden which is just as good.

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    Posted · Bowden tube disconnecting from feeder

    During printing the bowden tube is moving in a circular motion back and forth... the coupling can hold the bowden tube when you lift it, but when you make circular motion with it, the coupling will slip. Some couplings are better than others.


    Did you use a coupling clip?

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