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quick idiot question me being the idiot


fallen013

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Posted · quick idiot question me being the idiot

The clip supporting my bowden tube just shattered on my UM2. This means it is no longer locking in the feeder, I was changing the filament and segment got trapped in the tube, So when removing the tube itself to get the plastic out after loseing off the back box the white plastic bit which holds it in place fell to piece, I put the pipe back in put it all back together and of course as the tube isn't help in place it moves so printing isn't going to happen right at this moment cause of this.

I also found that there was a kink in the tube that the filament was sticking too. So I feel the tube has obviously warped at some point but 700 hours + printing inside of a month is not surprising so total ware and tear on my part. I do print an awful lot of stuff.

But there is no replacement Bowden section in the UM2 spare parts will the UMO one work or is it size specific?

 

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    Posted · quick idiot question me being the idiot

    No way I'd pay UM parts prices and shipping (and hassle) for that! I bought 6mm tubing from Amazon.co.uk. I also bought plastic plumbing parts that (if you look carefully) provides the bowden clips and collets (x9). E.g. :-

    http://www.amazon.co.uk/gp/product/B008NC4JUO?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00

    http://www.amazon.co.uk/gp/product/B006PF1RBK?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00

    I admit that I've not actually tried the hose yet, since my original tubing is still perfectly ok. That plumbing fitting provides the complete fitting: collet and collet clip.

    I've also previously posted an OpenSCAD model to let you print your own collet clips :-

    http://umforum.ultimaker.com/index.php?/topic/7338-ultimaker-2-collet-locks/?p=68640

     

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    Posted · quick idiot question me being the idiot

    You don't need to use the clip. Instead loosen the 4 screws quite a few turns - maybe 2 or 3mm of gap. Then shove the bowden in as far as possible and re-tighten. The compression should be enough to hold the bowden-holder up without needing the clip.

     

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    Posted · quick idiot question me being the idiot

    You don't need to use the clip. Instead loosen the 4 screws quite a few turns - maybe 2 or 3mm of gap. Then shove the bowden in as far as possible and re-tighten. The compression should be enough to hold the bowden-holder up without needing the clip.

     

    Ewwwww..... I'm sure this works, but yuk! ;-)

     

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    Posted · quick idiot question me being the idiot

    and if you tighten it to much you probably shorten the lifetime of your PTFE and bowden, i guess to much pressure wil increase deformation of these parts.

     

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    Posted · quick idiot question me being the idiot

    If it won't stay put by itself, then I'd have thought something like a paper clip would serve as a temporary measure, at least long enough for you to print off some collet locks from that OpenSCAD script I linked you to. Or even a bit of 1mm cardboard cut to shape with scissors.

     

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    Posted · quick idiot question me being the idiot

    I built a temporary clip using a plasticard tube.An a soldering iron.

    Then put the pipe in that and yeah so far it works, but I think the direct sunlight on the back of the machine will probably degrade the plastic once more so need to reposition the thing in the office away from the patio doors.

     

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    Posted · quick idiot question me being the idiot

    I believe we've been talking at cross purposes. I now think you mean the collet - the bit that encloses the tube, rather than what I would call the (retaining) clip.

    Never mind, that plumbing fixture has both, and since that gives you 9 connectors for £5 you hopefully already have it by now!

     

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