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I have a Monoprice Maker Select Plus.

It recently started having issues printing. It turns out that the small plastic tube that feeds the extruder with filament was completely clogged. I couldn't get any of the filament out so I need a new feeder tube. I can't find one specifically for this printer anywhere. Does anyone have any ideas?enter image description here

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    $\begingroup$ Could you add a photograph? Is this tube inside the heat break or between extruder and hotend? $\endgroup$
    – 0scar
    Jun 13, 2021 at 22:17
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    $\begingroup$ I just added a picture. It is a plastic tube that goes inside of the metal tube I circled. $\endgroup$
    – sabo
    Jun 13, 2021 at 22:29

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This printer is using a so-called MK 10 extruder/hotend. These are a little different, there is a liner for the heat break that continues all the way down to inside the MK 10 nozzle:

enter image description here

This PTFE tubular liner has an outer dimension of 4 mm and an inner diameter of 2 mm. The length of the tube is 34 mm. These tubes can be bought at pre-cut size or, more economical, bought per meter.

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  • $\begingroup$ The per meter tube looks like one of the sizse sold for Bowden tubes. $\endgroup$
    – Perry Webb
    Jun 14, 2021 at 13:38
  • $\begingroup$ It is one and the same material, it's a PTFE tube ID/OD 2/4 mm. Alternatives are Capricorn tubes, which supposed to withstand higher temperatures. $\endgroup$
    – 0scar
    Jun 14, 2021 at 14:11
  • $\begingroup$ PTFE has an advantage of low friction as well has temperature tolerance; thus ideal for Bowden tubes. Apparently, Capricorn tubes are still PTFE. $\endgroup$
    – Perry Webb
    Jun 14, 2021 at 14:55
  • $\begingroup$ Any idea where I can buy this? Everywhere I find it, it is 1.75mm. $\endgroup$
    – sabo
    Jun 14, 2021 at 15:20
  • $\begingroup$ @sabo It's designed for 1.75mm filament, the ID will still be large enough to work flawlessly. $\endgroup$
    – towe
    Jun 15, 2021 at 12:02

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