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    Remote Filament Storage Box tubes give too much friction

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    • gallaghersartundefined
      gallaghersart
      last edited by

      I have a few 3D printers and my goal was to have all the Filament rolls being used between the printers in a single large container.

      But I have found the 6ft + of normal PTFE 1.75mm filament tube results in way too much friction at these lengths.

      I found larger ID PTFE tubes but at a much higher price as the size goes up.

      Was thinking of using larger ID PT tubes I used for water filter system, much cheaper.

      Anyone have any recommendations on PTFE or PT and sizes for long haul filament tubes before extruder motors?

      thanks!
      `mike

      mwolterundefined 1 Reply Last reply Reply Quote 0
      • whopping pochardundefined
        whopping pochard
        last edited by

        I just use a short piece coming out of the box as as strain relief, and a short reverse bowden tube going to the extruder, and leave the filament free in between. Seems to work adequately.

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        • Pakueundefined
          Pakue
          last edited by

          It may help to lubricate them with a little oil to improve the friction. I've seen that done on some Bowden printers with long tubes.

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          • gallaghersartundefined
            gallaghersart
            last edited by

            whopping pochard 16 Dec 2020, 10:45;
            I like the strain relief idea, was going to put a filter at the tub side, but I can place just before extruder. Down side, would leave some of the filament exposed to open air and may - if left over time absorb water for the exposed area.

            Pakue 16 Dec 2020, 10:47;
            I tried that before but would give inconsistent fixes that run out over time, plus have had issues with sticking to bed when too much oil was used.

            So far have found no clear PT tubes so I might just go with Pochard, unless better solution is found

            thanks!
            `mike

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            • NeueKlasseundefined
              NeueKlasse
              last edited by

              I Have a Longterm Usage Tip,

              Use 2.85mm Capricorn Tubing, you don't see any Friction again.
              I use it together with my Ender 5 and a FilamentBox

              Prusa Mini, Chiron @ BMG X2
              Metal SLS Printer Development

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              • mwolterundefined
                mwolter @gallaghersart
                last edited by

                @gallaghersart Ran into the same issue and switched to 3mm ID 4mm OD PTFE tube and it was resolved. Found this eBay listing which was a better value and the seller will combine orders for longer lengths.

                https://www.ebay.com/itm/2M-PTFE-Teflon-Tubing-for-Bowden-Tube-3mm-ID-4mm-OD-3mm-3D-printer-Extruder/353092711873

                The next step is to add a feeder extruder to the filament box but not sure it's necessary.

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                • Vetiundefined
                  Veti
                  last edited by

                  you can find the ptfe cheap at aliexpress

                  eg.
                  https://de.aliexpress.com/item/32730855848.html

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