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We're jammin : (


kissandra79
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Posted · We're jammin : (

My ultimaker constantly lets a little bit of the molten plastic ooze in between the bowden cable and the 'internal rim' inside the peek. As a consequence, it keeps "jammin" : (

I have had to repeatedly (atleast 14 times in the last 2 days) remove the entire extrusion unit and reassemble it, just to put the bowden cable back in its place inside the peek just over the rim. Every time, while doing it, I try to maker sure there is no space in between the internal rim of the peek and the bowden cable but somehow, for every 2 print runs the molten PLA plastic manages to solidify, that the extrusion motor starts pushing the bowden cable backwards.

If it has happened so many times, I'm actually beginning to doubt that the ultimaker might be a defective design or I'm simply incompetent to fix it. I'm guessing its the latter. Could someone please tell me, how I might fix this? Or if there is something that is inherently wrong about what I am doing?

Cheers and Regards

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    Posted · We're jammin : (

    There should not be an "internal rim" inside the PEEK. It should make a straight connection to the bowden tube...

    There is a design flaw with the current design, which doesn't effect everyone (my machine is running without issues for example) and Ultimaker will come with a fix very soon.

    (You also posted in the wrong forum section, but that's no big problem)

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    Posted · We're jammin : (

    So I was right in assuming that the design is partially flawed.

    Could you please tell me how I might solve my problem? Obviously I am one of the affected few and I have dis-assembled and re-assembled the extruder assembly more times than I wish to count.

    Any hack, suggestion or simply a pointer in the right direction is very much appreciated.

    Cheers and Regards.

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    Posted · We're jammin : (

    Easiest solution would be the V2 hotend. It will be released on the Ultimaker shop next week.

    I just installed one of these new hotends today, on a machine which started to have plugging problems. It has been running for 6 hours now without problems.

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