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Why is this Bowden tube being pushed out?


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Posted · Why is this Bowden tube being pushed out?

For the last week every time I print for more than a couple of hours, the Bowden tube leading to Print head 1 is dislodged and filament continues to be driven but does not extrude.

I assume that this is a problem at the hot end, so I have done the maintenance with hot and cold pulls and all appears good.  It isn't just one filament it has been various but all are Ultimaker PLA.  What am I doing wrong?  Image is on its side, not sure how to fix that, sorry.

IMG_0597.jpg

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    Posted · Why is this Bowden tube being pushed out?

    Cut 5mm off the end of the bowden on the end that goes into the feeder, so its got a fresh bit of bowden to grip to. if that don't work then its likely the collet is worn.

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    Posted · Why is this Bowden tube being pushed out?
    2 minutes ago, achsmith said:

    So, Carbon, it is a common problem but you don't give a solution, thanks my friend!

     

    The answers are within the "Quoted" threads.. Have you read them?

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    Posted · Why is this Bowden tube being pushed out?

    Carbon, yes, but why do some clever, clever and expert people just not use the KISS principle.  State the reason and then give the references instead of trying to demean someone.  Obviously I looked in the wrong place or I wouldn't have asked the question, would I? The answer by Carla was exactly what was needed, succinct, to the point and correct, but thank you for bothering anyway.  Issue appears to be resolved.

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    Posted · Why is this Bowden tube being pushed out?

    So I'm back again with the same problem.

    I have shortened and countersunk the Bowden tubing

    I have replaced the collet, clips and tubing

     

    I still have the same problem, so any helpful advice is welcomed!

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    Posted · Why is this Bowden tube being pushed out?
    7 hours ago, achsmith said:

    I still have the same problem, so any helpful advice is welcomed!

     

    Next thing I'd look at would be print settings of speed, hotend temp, and nozzle size. Could the extruder be trying to push too much through a small hole at high speed?   

     

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    Posted · Why is this Bowden tube being pushed out?

    So reduce speed, ok will do.  I have done hot and cold pulls to check there isnt a partial blockage and I have put in a brand new AA print core.  Thanks for the advice

     

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