Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    nozzle wipe

    Scheduled Pinned Locked Moved
    3D Printing General Chat
    14
    83
    6.3k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • deckingmanundefined
      deckingman @arhi
      last edited by

      @arhi said in nozzle wipe:

      I assume it is same "plastic repellent coating" X nozzles from E3D use

      I wouldn't make that assumption if I were you.

      I have a rough idea what Slice Engineering use but I don't know for sure and even if I did, I couldn't divulge that information. I think a fusing process which involves heating the part to around 581 deg C might be involved, but I could be wrong. I have no idea what E3D use except what I've read from their marketing literature.

      But I think it would be a mistake to assume that just because one coating from one nozzle manufacturer didn't work for you, that all coatings by all nozzle manufacturers would behave the same. Having said that, as I said before, I can't vouch for the Slice Engineering coating because I haven't been able to test it.

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

      arhiundefined 1 Reply Last reply Reply Quote 0
      • arhiundefined
        arhi @deckingman
        last edited by

        @deckingman said in nozzle wipe:

        @arhi said in nozzle wipe:

        I assume it is same "plastic repellent coating" X nozzles from E3D use

        I wouldn't make that assumption if I were you.

        It looks exactly the same and I'm pretty sure I heard on some of the videos about mosquito something like "our vanadium nozzle uses same olifobic material as e3d is now using" or something along those lines, but could not find the video... I have no clue what's e3d using neither 😄

        Anyhow friend just got his original recently with 5+ nozzles (I think all vanadium coated with this thing) and he just started using them. If not for this police lockout I'd be there with thermal camera already but unfortunately... We'll see in few weeks how will that vanadium looks like 😄 ... so far we confirmed that original mosquito has zero issues with PLA (contrary to that damn clone I purchased).

        But I think it would be a mistake to assume

        I always say assumption is mother of all fsckups and when I do assume I'm sure to be clear that I don't "know" but just assume 🙂 (actually maybe assume is wrong term here, "suspect" or "almost believe to be" might be more correct)

        deckingmanundefined 1 Reply Last reply Reply Quote 0
        • SpoonUnitundefined
          SpoonUnit
          last edited by

          @arhi said in nozzle wipe:

          X nozzle
          The "scratches" are from the brass brush

          The brass brush will destroy the X-nozzle coating pretty quickly IIRC.

          1 Reply Last reply Reply Quote 0
          • zaptaundefined
            zapta @A Former User
            last edited by

            @CaLviNx said in nozzle wipe:

            I print almost exclusively with petg (das-filament) and after I carry out the initial wipe I don't suffer from build up on the nozzle at all,

            Any suggestion what kind of settings to loo for to avoid buildup? I am using 2mm retraction, 0.95 flow, and 245C. BMG direct extruder + E3D hotend with 0.4mm brass nozzle.

            A Former User? 1 Reply Last reply Reply Quote 0
            • A Former User?
              A Former User @zapta
              last edited by

              @zapta

              First thing is "squish" petg doesn't like being squished into the bed like PLA does. You could be quite alarmed at how much further away from the bed petg likes to be. On my chiron I run a BMG with an e3d nozzle and the retraction on it is all the way upto 5.60mm retraction speed of 40.0mm/s.

              I also force retraction between layers (in simplify3d)

              1 Reply Last reply Reply Quote 0
              • deckingmanundefined
                deckingman @arhi
                last edited by

                @arhi said in nozzle wipe:

                It looks exactly the same ................

                ....................I always say assumption is mother of all fsckups and when I do assume I'm sure to be clear that I don't "know" but just assume 🙂 (actually maybe assume is wrong term here, "suspect" or "almost believe to be" might be more correct)

                Sure it might look the same but that's hardly a basis for assuming, "suspecting", or "almost believing" that it is the same. Taking a quick gander at the relative specs, E3D claim a hardness of 60 HRC for their X nozzles while Slice Engineering claim 65 HRC. Given that the Rockwell scale is logarithmic, that's a big difference in hardness even though they "look the same".

                One of my neighbours has a cat. It has 4 legs and a tail. My other neighbour also has a pet which has 4 legs and a tail. At night and from a distance they look the same. Do you therefore assume, suspect or almost believe that the other pet must also be a cat? (Hint - one mews the other barks). ☺

                Not sure how we ended up here but we've gone way off topic. Nice little chat though......☺

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

                jens55undefined arhiundefined 2 Replies Last reply Reply Quote 1
                • jens55undefined
                  jens55 @deckingman
                  last edited by

                  @deckingman said in nozzle wipe:

                  One of my neighbours has a cat. It has 4 legs and a tail. My other neighbour also has a pet which has 4 legs and a tail. At night and from a distance they look the same. Do you therefore assume, suspect or almost believe that the other pet must also be a cat? (Hint - one mews the other barks). ☺

                  It's a cat speaking a foreign language ....

                  1 Reply Last reply Reply Quote 1
                  • Phaedruxundefined
                    Phaedrux Moderator @arhi
                    last edited by

                    @arhi I've been using the same hardened steel nozzle heavily for about 2 years now and I've never managed to get it that messy. The little bit that does manage to cake on comes off easy when heated to 80-90c with a pair of pliers. I use a brass brush too. No coating to worry about. In fact, if anything the steel has been seasoned from use with it's own non-stick coating.

                    Z-Bot CoreXY Build | Thingiverse Profile

                    arhiundefined 1 Reply Last reply Reply Quote 0
                    • arhiundefined
                      arhi @deckingman
                      last edited by

                      @deckingman that is a huge difference in hardness so they def. are not same. Dunno if it has to do with the hardness of the underlying material as e3d nozzles are made from something way softer than vanadium :D. Not sure if the rockwell measuring needle can easily measure just the coating (none of the ones I seen could).

                      We'll see how the slice one will perform 🙂 I have one vanadium nozzle (hexagon, their experimental one, was too expensive to produce so they never mass-produced them) and I love it even without any coating so I might be a user soon... also with the clone, while the clone is useless pos that does not work it gave me a good understanding of the size and weight of the mosquito so I'm getting me one as soon as I can.

                      Back to original discussion, I'm thinking hard about the "design" of the "brush" and I still don't see what would be much better than a simple "plate" to brush over (like what you and @danal are using), anything I came up (stacked arrowheads were kinda max I could throw) can be "simulated" by different path over the simple flat plate so I'll just wait for this to pass and use a flat piece of silicone stripe, till then this sponge will have to do 🙂

                      1 Reply Last reply Reply Quote 0
                      • arhiundefined
                        arhi @Phaedrux
                        last edited by

                        @Phaedrux said in nozzle wipe:

                        @arhi I've been using the same hardened steel nozzle heavily for about 2 years now and I've never managed to get it that messy.

                        I have bunch of printers with very clean nozzles too, this is the nozzle I used to "break this printer in", to get extrusion, heights, sensors etc etc dialed in so there was plowing trough overextruded filament more than once 😄 When the printer get dialed in usually nozzle and heatblock only slowly turn black from collecting that abs oil that condenses from abs fumes, or in case of pla/petg they stay super clean 🙂

                        1 Reply Last reply Reply Quote 0
                        • Danalundefined
                          Danal
                          last edited by

                          Fairly heavily used nozzle, wiped over the strip thingie above for all its life.

                          2af262e4-b74e-49fb-88f1-08c4ed33ec37-image.png

                          Delta / Kossel printer fanatic

                          1 Reply Last reply Reply Quote 0
                          • Danalundefined
                            Danal
                            last edited by

                            Much, MUCH older, same wipe for life, this one really needs to be replaced (it was, a few min later) because of the scratching on the "ironing surface" around the actual hole.

                            2d239ad2-b649-44f5-832b-d7b75df96ad4-image.png

                            Delta / Kossel printer fanatic

                            arhiundefined 1 Reply Last reply Reply Quote 0
                            • arhiundefined
                              arhi @Danal
                              last edited by

                              @Danal after few kg of ABS no matter how I wipe them they never look like that, they exposed parts are all "black" from the ABS oil/vapors

                              Danalundefined 1 Reply Last reply Reply Quote 0
                              • mwolterundefined
                                mwolter
                                last edited by mwolter

                                Here's a conditional gcode nozzle wipe script using a straight piece of silicone mounted on the back left corner of the frame (no Z coordinate). There might be a cleaner way but couldn't think of one without a modulus or "is even" operator.

                                G1 X-12 Y332 F24000 ; rapid to inital point outside the wipe strip
                                while true
                                	if iterations = 0 || iterations = 2 || iterations = 4 || iterations = 6
                                		G1 X-4 Y{332 - iterations * 2} F1200
                                		G400
                                	else
                                		G1 X-12 Y{332 - iterations * 2} F1200
                                		G400
                                	if iterations = 6
                                		break
                                
                                dc42undefined 1 Reply Last reply Reply Quote 1
                                • Danalundefined
                                  Danal @arhi
                                  last edited by

                                  @arhi said in nozzle wipe:

                                  @Danal after few kg of ABS no matter how I wipe them they never look like that, they exposed parts are all "black" from the ABS oil/vapors

                                  Yeah, those were all PLA, maybe a little PETG now and then. I have literally printed < 1 kilo of ABS in the last five years.

                                  Delta / Kossel printer fanatic

                                  arhiundefined 1 Reply Last reply Reply Quote 0
                                  • arhiundefined
                                    arhi @Danal
                                    last edited by

                                    @Danal I print mostly ABS on most my printers. This nozzle on the image (E3D-X 0.3 ) printed maybe 100g of ABS so that's all PLA and PETG

                                    1 Reply Last reply Reply Quote 0
                                    • arhiundefined
                                      arhi
                                      last edited by

                                      conclusion - this silicone sponge, while totally cool for kitchen, disaster here .. total disaster 😞 not working at all really ..

                                      I recently removed the blue e3d sock for this black noname sock as this black one is imo better (thicker, harder, stays better on ..) ... and since I'm on white PETG attm it's very visible, I noticed everything is white under, cleaned it manually, wipe, white again ... darn bristles on this sponge are so soft that when nozzle come on to clean the ooze instead of cutting the ooze off it smears the ooze all over the sock and nozzle, again and again and again ... and no matter of swiping head over that sponge helps 😞 ... then I tried it manually, to clean nozzle by hand using a sponge and it does not work. Figuring now that's what I was supposed to try before I mounted the sponge but life. If it wasn't for you guys telling me how ugly that nozzle is I might allow this to continue longer 😄

                                      I managed to find original silicone sheet I designed that wiper for. Thin 0.5mm one, I doubled it up and put there. It's nothing special, just works 😄 .. I'll upload new script later, tweaking it up, getting inspiration from @mwolter 🙂

                                      1 Reply Last reply Reply Quote 0
                                      • arhiundefined
                                        arhi
                                        last edited by arhi

                                        if !move.axes[0].homed || !move.axes[1].homed 
                                          echo "X and Y axes not homed, aborting the wipe"
                                          M99
                                        
                                        if state.currentTool < 0
                                          echo "No tool loaded, aborting the wipe"
                                          M99
                                        
                                        if heat.heaters[tools[state.currentTool].heaters[0]].current < 200
                                          echo "Extruder too cold, no point wiping, aborting the wipe"
                                          M99
                                        
                                        ; Drop all motor currents down
                                        M400
                                        M913 X30 Y30 Z25
                                        
                                        ; relative extruder (if I understand how push/pop work in RRF 
                                        ; this should be returned to what it was on exit from this macro)
                                        M83 
                                        while true
                                          ; go around the stripe
                                          G0 X-110 Y40  F9000
                                          G0 X-135 Y40  F9000
                                          G0 X-135 Y{100 - iterations * 3} F9000 
                                          ; wipe
                                          G0 X-120 Y{100 - iterations * 5} F6000
                                          if iterations == 6
                                            G1 E-3 F3000
                                          if iterations == 8
                                            break
                                        
                                        ; go to park position
                                        G0 X-135 Y40  F9000
                                        
                                        ; Return all motor currents to 100%
                                        M400
                                        M913 X100 Y100 Z100
                                        

                                        I need to clean from the same side always cause the silicone is not stiff enough and I didn't want to cut it too close to the petg holder but looks like it works now 🙂

                                        1 Reply Last reply Reply Quote 0
                                        • arhiundefined
                                          arhi
                                          last edited by arhi

                                          actually turned it around so that the "bend" of the .5mm silicone is what i brush on .. stiff enough so I can go both directions 😄 ... this is great 🙂

                                          if !move.axes[0].homed || !move.axes[1].homed 
                                            echo "X and Y axes not homed, aborting the wipe"
                                            M99
                                          
                                          if state.currentTool < 0
                                            echo "No tool loaded, aborting the wipe"
                                            M99
                                          
                                          if heat.heaters[tools[state.currentTool].heaters[0]].current < 200
                                            echo "Extruder too cold, no point wiping, aborting the wipe"
                                            M99
                                          
                                          ; Drop all motor currents down
                                          M400
                                          M913 X30 Y30 Z25
                                          
                                          ; relative extruder move
                                          M83 
                                          
                                          ; X-135, Y100 
                                          ; X-120, Y60
                                          
                                          G0 X-110 Y40  F9000
                                          G0 X-135 Y40  F9000
                                          G0 X-135 Y100 F9000 
                                          
                                          while true
                                            G0 X-135 Y{100 - iterations * 3} F9000 
                                            G0 X-115 Y{100 - iterations * 5} F6000
                                            if iterations == 6
                                              G1 E-3 F3000
                                            if iterations == 8
                                              break
                                          
                                          ; go to park position
                                          G0 X-135 Y40  F9000
                                          
                                          ; Return all motor currents to 100%
                                          M400
                                          M913 X100 Y100 Z100
                                          

                                          What I just figured out is that I have this ~1cm of space on the left side of the bed for the whole Y length and that it would be way smarter to use a stiff piece (like @deckingman made taht milled channel) of 1x1cm square "rod" and attach it to front left and back left frame so I have stiff wiper along the whole depth of the printer... need to figure out how to do it, none of my CNC machines have working range of 30cm, maybe do it in 2 passes or just pay someone to do it for me after things go back to normal. Anyhow, this works, yeeey 🙂 and this new programable g-code is awesome 🙂

                                          deckingmanundefined 1 Reply Last reply Reply Quote 0
                                          • deckingmanundefined
                                            deckingman @arhi
                                            last edited by

                                            @arhi For info, I'm currently working on a better "bucket". What I mean by that is with a mixing hot end, I sometimes have to purge as well as wipe. That purged plastic has to be collected, otherwise it would end up getting onto the belt that drives the lead screws. My current "bucket" is too shallow and I have to empty it more often than I would like.

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

                                            timcurtis67undefined 1 Reply Last reply Reply Quote 1
                                            • First post
                                              Last post
                                            Unless otherwise noted, all forum content is licensed under CC-BY-SA