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Duet3D PCB delta printer effector sneak preview

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Smart effector for delta printers
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  • undefined
    Hey_Allen
    last edited by 15 Mar 2017, 21:44

    Definitely interested in a set as well.

    That looks promising!

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      James
      last edited by 15 Mar 2017, 22:16

      Ditto. Looks clean and light!

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        dc42 administrators
        last edited by 15 Mar 2017, 22:18

        On the effector pictured, I envisage a printed part to support fans being attached below the effector using the tails of the ball studs. Or you could clamp a fan assembly to the hot end heatsink. We also have another design prototype with additional mounting holes in it.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

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          Qdeathstar
          last edited by 19 Mar 2017, 15:21

          Is there an eta on availability/approximate cost.

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            Jimborr
            last edited by 19 Mar 2017, 18:36

            Guess I know what I am buying in the near future then ;D

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              dc42 administrators
              last edited by 19 Mar 2017, 21:54

              I got the built-in nozzle contact sensor working today. If I move the nozzle to 0.1mm below Z=0 then the probe sometimes triggers, and if I move it to 0.125mm below Z-0 then it always triggers. I think this is probably a reasonable sensitivity, because I am using a PEI bed. PEI is known for being soft and causing difficulties with accelerometer-based sensors because of that. I've already identified some design improvements to make the next prototype more sensitive.

              We don't yet know what the cost will be. If we can avoid the expense and risk of drilling piezo disks - as we hope to - then it will help keep the manufacturing cost down. At present the component cost is reasonable, but the manufacturing cost may be a little high because there are SMD parts on one side and through-hole connectors on both sides. So at least 2 of the connectors will have to be hand-soldered.

              I've also been talking to E3D about a slightly modified hot end mounting method that puts less of the hot end below the effector than the current setup.

              As for ETA, we need at least one more round of prototyping and some beta testing before we go to manufacture. Given the turnaround time on PCBs, that makes it at least 8 weeks away from general availability.

              Duet WiFi hardware designer and firmware engineer
              Please do not ask me for Duet support via PM or email, use the forum
              http://www.escher3d.com, https://miscsolutions.wordpress.com

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                kraegar
                last edited by 20 Mar 2017, 12:24

                I think it's reasonable to sell something like that with the hand soldered pieces separate, and charge a small fee to solder them. That's not totally uncommon (Headers on many breakouts, for example) and people at a place in this hobby to want to buy your effectors should be able to handle basic through-hole soldering.

                Co-Creator of the RailcoreII CoreXY printer
                https://www.thingiverse.com/thing:2407174

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                  a96bimmerm3gmail.com
                  last edited by 20 Mar 2017, 12:32

                  I'm fine with no piezos. And let me know if you need any prototypes on this side of the pond- there's a few PCB houses in california that have done PCB prototypes for me for very cheap.

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                    Jimborr
                    last edited by 20 Mar 2017, 19:56

                    Any chance you or T3P3 will make custom length Haydn Huntley magnetic arms and sell it all as a kit with the PCB?

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                      dc42 administrators
                      last edited by 20 Mar 2017, 21:29

                      I used the onboard nozzle contact sensor to do auto calibration and mesh bed levelling on my 300mm diameter bed delta today. After I remembered to remove the H corrections from bed.g and put in the new diagonal rod length, the deviation for both was around 20um. I'll do more tests tomorrow to check how reproducible the sensor is.

                      Duet WiFi hardware designer and firmware engineer
                      Please do not ask me for Duet support via PM or email, use the forum
                      http://www.escher3d.com, https://miscsolutions.wordpress.com

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                        T3P3Tony administrators
                        last edited by 20 Mar 2017, 23:51

                        @Jimborr:

                        Any chance you or T3P3 will make custom length Haydn Huntley magnetic arms and sell it all as a kit with the PCB?

                        We will certainly explore collaborating with Haydn on purchasing his mag arms in larger volumes to bundle with the effectors, once we get closer to a production version. That makes sense for people in the UK/Europe at least (it makes less sense to import them from the US just to ship them back).

                        www.duet3d.com

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                          JohnOCFII
                          last edited by 21 Mar 2017, 03:54

                          I'll keep my eye one this!

                          John

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                            bot
                            last edited by 21 Mar 2017, 19:01

                            I'm curious about that custom e3d heatsink. Does it have the piezo disk integrated? I'd love an e3d hotend with simply three screws to mount it rather than the groove mount, but I'm not certain that I'd like to experiment with piezo disks. Can you clarify what that is in the photos?

                            *not actually a robot

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                              Cata
                              last edited by 21 Mar 2017, 19:07

                              I don't like the custom heatsink, not easy to leave a standard.

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                                dc42 administrators
                                last edited by 21 Mar 2017, 19:11

                                It's not a custom heatsink, it's a prototype of a new design that E3D is working on because a lot of people hate the groove mount.

                                Duet WiFi hardware designer and firmware engineer
                                Please do not ask me for Duet support via PM or email, use the forum
                                http://www.escher3d.com, https://miscsolutions.wordpress.com

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                                  T3P3Tony administrators
                                  last edited by 21 Mar 2017, 19:55

                                  @bot:

                                  Can you clarify what that is in the photos?

                                  Spoilers ;D

                                  www.duet3d.com

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                                    dc42 administrators
                                    last edited by 21 Mar 2017, 20:18

                                    @bot:

                                    I'm curious about that custom e3d heatsink. Does it have the piezo disk integrated? I'd love an e3d hotend with simply three screws to mount it rather than the groove mount, but I'm not certain that I'd like to experiment with piezo disks. Can you clarify what that is in the photos?

                                    No the E3D new heatsink prototype does not have a piezo disc or any other type of contact sensor integrated.

                                    Duet WiFi hardware designer and firmware engineer
                                    Please do not ask me for Duet support via PM or email, use the forum
                                    http://www.escher3d.com, https://miscsolutions.wordpress.com

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                                    • undefined
                                      bot
                                      last edited by 22 Mar 2017, 00:10

                                      This is music to my ears! Thank you for collaborating with e3d on this.

                                      *not actually a robot

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                                        Jimborr
                                        last edited by 22 Mar 2017, 15:05

                                        @T3P3Tony:

                                        @Jimborr:

                                        Any chance you or T3P3 will make custom length Haydn Huntley magnetic arms and sell it all as a kit with the PCB?

                                        We will certainly explore collaborating with Haydn on purchasing his mag arms in larger volumes to bundle with the effectors, once we get closer to a production version. That makes sense for people in the UK/Europe at least (it makes less sense to import them from the US just to ship them back).

                                        I would buy it that's for sure - located in EU/SWE. I have a copy of David's delta and would love the same setup, incl
                                        rails instead of wheels.

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                                          dc42 administrators
                                          last edited by 22 Mar 2017, 20:30

                                          @Jimborr:

                                          I would buy it that's for sure - located in EU/SWE. I have a copy of David's delta and would love the same setup, incl
                                          rails instead of wheels.

                                          I've just published the build details at https://miscsolutions.wordpress.com/2017/03/22/time-to-rebuild-my-large-kossel/. I haven't finished the commissioning instructions yet, and the section on the effector and hot end is a bit sketchy because we and E3D are making some design changes.

                                          Duet WiFi hardware designer and firmware engineer
                                          Please do not ask me for Duet support via PM or email, use the forum
                                          http://www.escher3d.com, https://miscsolutions.wordpress.com

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