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Best dual extrusion setup in your opinion?

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  • undefined
    Scachi
    last edited by 18 Jan 2019, 15:43

    I had a magnetic dual tool parking tool based on one from thingiverse https://www.thingiverse.com/thing:1446731
    modified to work on my old anycubic prusa i3 clone without losing print area.
    It was working very good once the tool offset was adjusted correctly.
    Here are a few pictures of it (bowden): https://imgur.com/a/ZCPiut0
    I used it with direct extruder too: https://www.thingiverse.com/make:462322

    I have changed to a core xy with a bigger print area and using a y-adapter for now as I would have to change a lot on the carriage system to get a magnetic tool change working again similar to the one I had on my anycubic.
    Haven't used the dual y-adapter a lot but seems to be working ok.
    The magnetic one was a lot more fun and less settings (less retraction on tool change, no puge/prime) to care about.

    undefined 1 Reply Last reply 19 Jan 2019, 05:25 Reply Quote 0
    • undefined
      SuperJETT @Scachi
      last edited by SuperJETT 19 Jan 2019, 05:25

      @scachi said in Best dual extrusion setup in your opinion?:

      I had a magnetic dual tool parking tool based on one from thingiverse https://www.thingiverse.com/thing:1446731
      modified to work on my old anycubic prusa i3 clone without losing print area.
      It was working very good once the tool offset was adjusted correctly.
      Here are a few pictures of it (bowden): https://imgur.com/a/ZCPiut0
      I used it with direct extruder too: https://www.thingiverse.com/make:462322

      I have changed to a core xy with a bigger print area and using a y-adapter for now as I would have to change a lot on the carriage system to get a magnetic tool change working again similar to the one I had on my anycubic.
      Haven't used the dual y-adapter a lot but seems to be working ok.
      The magnetic one was a lot more fun and less settings (less retraction on tool change, no puge/prime) to care about.

      @Scachi Can you share your tfree/pre/post files so I can compare against them?

      Custom CoreXY at home with Duet Wifi, Hemera

      1 Reply Last reply Reply Quote 0
      • undefined
        SuperJETT @Danal
        last edited by 19 Jan 2019, 05:27

        @danal Yeah, Palette is super nice but a bit beyond what I'm wanting to spend right now - I'm revamping my lens collection as I'm getting more serious about photography.

        Custom CoreXY at home with Duet Wifi, Hemera

        1 Reply Last reply Reply Quote 0
        • undefined
          Scachi
          last edited by Scachi 19 Jan 2019, 07:03

          @superjett Using this adapter: https://www.thingiverse.com/thing:3039887
          this are the settings I am using at the moment, only tested with petg.
          free

          ;tfree_Y.g - for Y-Adapter
          M83 ; relative extruder moves
          G1 E-4 F1000 ; retract
          G90 ; absolute moves
          ;G1 X0 Y300 F12000 ; move to back left side of the bed
          ;
          ; purge bucket at X64 Y-18
          G1 X0 Y100 F12000 ; move to left side
          M400
          G1 X64 Y-18 ; move to purge bucket
          M400
          G4 S2 ; pause two seconds
          G1 E-16 F1200 ; retract 16mm fairly slow (20mm in total)
          G1 E18 F3600 ; extrude 18mm to "pack" the stringing
          G1 E-200 F10000 ; immediately pull back as fast as the extruder allows

          post

          ;tpost_Y.g - for Y-Adapter
          ;
          M83 ;relative extruder moves
          G1 E210 F8000; extruder from mm cool position to the tip
          G1 E5 F500; extruder slower
          G1 E5 F200; extruder even slower into the tip
          ; purge bucket at X64 Y-18
          G1 E20 F200; extrude old material
          G4 S1 ; pause 1 second
          G1 E-5 F1000 ; retract same amount as the slicer
          G1 X64 Y0 F6000 ; move over silicon lip
          G91 ; relative moves
          undefined 1 Reply Last reply 19 Jan 2019, 15:57 Reply Quote 0
          • undefined
            SuperJETT @Scachi
            last edited by 19 Jan 2019, 15:57

            @scachi Thank you for the links and your code.

            I yank 3mm, ram it back in just under 3, wait 2 seconds, then yank 20 and ram 20 then yank 110mm total.

            During testing it works great, the filament ends looks great, everything is very smooth, but during printing it eventually has a bad stringing change at some point, normally once it gets out of the bottom solid layers so the layers print much quicker which may be part of the problem.

            Custom CoreXY at home with Duet Wifi, Hemera

            1 Reply Last reply Reply Quote 0
            • undefined
              Edkirk @Danal
              last edited by 19 Jan 2019, 17:52

              @danal Great information on the Mosaic Pallet, I have been interested in multi colored or a splicer for long prints. Their site says they currently do not communicate with Duet but as you say they can work together. Thanks, I will give it a try. I have been waiting for the E3D Tool Changer but the splicer appears to be a better option. Thanks, Ed

              1 Reply Last reply Reply Quote 0
              • undefined
                PlasticMetal @dc42
                last edited by PlasticMetal 19 Jan 2019, 19:03

                @dc42 said in Best dual extrusion setup in your opinion?:

                • Single mixing extruder such as the Diamond or the Crane Quad. ... No good for printing plastic in one material and support using a different material.

                Why no good for multi-material (switching, not mixing)?

                undefined 1 Reply Last reply 19 Jan 2019, 21:47 Reply Quote 0
                • undefined
                  deckingman @PlasticMetal
                  last edited by 19 Jan 2019, 21:47

                  @plasticmetal said in Best dual extrusion setup in your opinion?:

                  @dc42 said in Best dual extrusion setup in your opinion?:

                  • Single mixing extruder such as the Diamond or the Crane Quad. ... No good for printing plastic in one material and support using a different material.

                  Why no good for multi-material (switching, not mixing)?

                  See my post above (18 Jan, 14:24)

                  Ian
                  https://somei3deas.wordpress.com/
                  https://www.youtube.com/@deckingman

                  1 Reply Last reply Reply Quote 0
                  • undefined
                    SuperJETT
                    last edited by 20 Jan 2019, 17:13

                    I've given up on dual extrusion for now, even went into config.g and commented out all of the lines related to the second extruder.

                    I tried a different 2-1 adapter (linked above by @Scachi ) but same results - likely from my all metal hot end but who knows. I have done exactly 1 dual color print successfully, about a year ago, and I think that was luck because there are just so many variables to deal with when trying a 2-1 setup.

                    A dual nozzle hot end won't work for a lot of the stuff I sell (I do some stuff on Etsy, custom personalized designs) because they tend to have flat tops and the second nozzle would mess up the finish too much for me.

                    I'll revisit IDEX one day when I feel like completely redesigning my printer. Thankfully I have a printer in my office if I need to make parts while mine is down.

                    Thanks everyone for the help/suggestions.

                    Custom CoreXY at home with Duet Wifi, Hemera

                    1 Reply Last reply Reply Quote 0
                    • undefined
                      manoam
                      last edited by 20 Jan 2019, 20:48

                      another option is a nozzle lifting mechanism -
                      this is something that i have been working on, to address similar issues with dual nozzles on a delta printer (can probably be mounted on most printer carriages with some modifications or adapter) -

                      https://www.thingiverse.com/thing:3335003

                      -the unused nozzle doesn't ooze or scrape the print
                      -no waiting for temperature changes
                      -no prime tower needed (with correct settings, not consistent yet)
                      relatively light and compact

                      so far i have it working nicely for dual colors and support materials

                      1 Reply Last reply Reply Quote 1
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