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    Duet3D PCB delta printer effector sneak preview

    Scheduled Pinned Locked Moved
    Smart effector for delta printers
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    • dc42undefined
      dc42 administrators
      last edited by

      It's designed to be compatible with other firmwares. The big question is whether the sensitivity will be suitable. The x256 stepper drivers on the Duet give low vibration levels, allowing the sensitivity to be set quite high without vibration from the motors causing false triggering. This might not be the case if you use stepper drivers with lower microstepping.

      The sensitivity can be adjusted by sending a serial bit stream to the effector. So if support for sending that is added to other firmwares, any possible problems with vibration could be overcome.

      The effector also requires a short delay between the end of a travel move and the start of a probing move, however I understand there are versions of most firmwares with this facility now.

      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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      • tomasfundefined
        tomasf
        last edited by

        This all looks fantastic. Can’t wait to order!

        1. What’s the thickness of the carriage adapters?
        2. Are some kind of technical drawings of the effector available (mainly for hole positioning), so I can make an adapter for my hotend?

        Thanks

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        • dc42undefined
          dc42 administrators
          last edited by

          1. 2mm

          2. I'll ask Tony to do some.

          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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          • jannisjundefined
            jannisj
            last edited by

            @Dougal1957:

            I hav'nt included the part fan as I use the Berdair system

            How did you mount the berd air to the pcb effector?

            Thinking of getting it myself

            -Jannis

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            • Rommieundefined
              Rommie
              last edited by

              It is done by an adapter Doug has made up, I'm sure he will either make you one or share the .stl if you ask him.

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              • A Former User?
                A Former User
                last edited by

                @jannisj:

                @Dougal1957:

                I hav'nt included the part fan as I use the Berdair system

                How did you mount the berd air to the pcb effector?

                Thinking of getting it myself

                -Jannis

                I just amassed the parts to make one myself after seeing Dougal1957 name his.

                The kit is $35.00 plus shipping but the cost of everything to make one myself via ebay cost me $9.54 including delivery

                I bought the following

                X1 24v air pump 4.5 litres a minute.
                X5 meters of surgical tubing (very flexible so hopefully there would be no resistance to induce any effector tilt that stiffer tube might induce)
                500mm of brass tube ( i will bend it and drill holes myself)

                I too would like to know the hole spacing of the ballstuds to allow me to print a bracket to hold the tube nice and close to the nozzle

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                • Dougal1957undefined
                  Dougal1957
                  last edited by

                  Mark

                  The Ball spacing is 55mm on the tower side and 20mm on the short sideI Have Freecad design for a tube holder that I can share if you wish current variant is for a 3/32 inch OD Tube (The berdair one) but it can easily be modified for any size of tube. Do be aware however that there is an LED between the rods on the short side that needs to be able to shine thru the mount plate.

                  Let me know if you need the files and I'll find somewhere to put them.

                  Doug

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                  • dc42undefined
                    dc42 administrators
                    last edited by

                    It's 12mm between adjacent ball stud centres at each corner. You can find the design for the bracket I use to attach a print cooling fan at https://www.thingiverse.com/thing:2467663. The notch is to leave space for the illumination LED.

                    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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                    • Dougal1957undefined
                      Dougal1957
                      last edited by

                      My Bad that's what happens when you go from memory!!

                      Mine for the tube is that spacing

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                      • A Former User?
                        A Former User
                        last edited by

                        Thanks Guys

                        That's the info I needed, I did notice the LED from the wiki pictures

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                        • Dougal1957undefined
                          Dougal1957
                          last edited by

                          @CaLviNx:

                          @jannisj:

                          @Dougal1957:

                          I hav'nt included the part fan as I use the Berdair system

                          How did you mount the berd air to the pcb effector?

                          Thinking of getting it myself

                          -Jannis

                          I just amassed the parts to make one myself after seeing Dougal1957 name his.

                          The kit is $35.00 plus shipping but the cost of everything to make one myself via ebay cost me $9.54 including delivery

                          I bought the following

                          X1 24v air pump 4.5 litres a minute.
                          X5 meters of surgical tubing (very flexible so hopefully there would be no resistance to induce any effector tilt that stiffer tube might induce)
                          500mm of brass tube ( i will bend it and drill holes myself)

                          I too would like to know the hole spacing of the ballstuds to allow me to print a bracket to hold the tube nice and close to the nozzle

                          do you have a link to that air pump and do you know if it can cope with the pressure drop down the tube

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                          • A Former User?
                            A Former User
                            last edited by

                            @Dougal1957:

                            do you have a link to that air pump and do you know if it can cope with the pressure drop down the tube

                            http://www.ebay.co.uk/itm/DC-24V-Mini-530-Air-Pump-Pressure-Air-Oxygen-Pump-for-Pet-Aquarium-Fish-Tank-/201704143957?hash=item2ef680fc55:g:DKkAAOSwB09YFr9s

                            The link above is to what I thought I was buying, seller messaged me and said he has no stock and would send an upgraded one at 4.5LPM instead.

                            But there are plenty around

                            http://www.ebay.co.uk/itm/DC-12V-24V-Mini-Vacuum-Pump-Separator-High-Pressure-Diaphragm-Air-Compressor-uk/192163738315?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D20140122125356%26meid%3De5ab83a70f314286afa57661cdb4cc49%26pid%3D100005%26rk%3D6%26rkt%3D6%26sd%3D142132737494

                            And pressure drop with either of those two is no real problem 4.5LPM is way more than enough with the restriction of the pipe and the end nozzles

                            I could do the math but that would mean thinking, bugger that, I just know from experience those pumps will be more than man enough for the job.

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                            • A Former User?
                              A Former User
                              last edited by

                              Quick and dirty bracket that will do the job

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                              • Dougal1957undefined
                                Dougal1957
                                last edited by

                                yeah I have some of the second type that you linked to not sure about your bracket it will block the light from the LED that is on that face shining down give it a bigger cut out

                                This is one that Lykle has mocked up

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                                • A Former User?
                                  A Former User
                                  last edited by

                                  @Dougal1957:

                                  yeah I have some of the second type that you linked to not sure about your bracket it will block the light from the LED that is on that face shining down give it a bigger cut out

                                  This is one that Lykle has mocked up https://cdn.discordapp.com/attachments/106223050856341504/342986599887273996/unknown.png

                                  Only problem I have with Lykle's one is the need to push the tube into it, and the forces required to hold it in there, I personally would much rather be able to remove the tube without disturbing the bracket or the ball studs, in the event of requiring access to to the hot end, hence my design using a replaceable tie warp which would allow the tube to drop away leaving the bracket in place, agreed the LED might be obscured a bit, but a 2 minute change to the design can offset the tube to the side to correct that.

                                  and on reflection Lykles bracket would fully obscure the LED

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                                  • Dougal1957undefined
                                    Dougal1957
                                    last edited by

                                    Ok what I have on mine is a short length of 1/8 tube which is the exact size for the Berd air one to fit inside of snuggly so I will superglue the 1/8 into my bracket and use a bit of my tubing as a clamp to hold it in situ the berd air one also is a tight push fit over the silicon sock nozzle part. Looking at lykle's again it wont fit I will tell him lol.

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                                    • A Former User?
                                      A Former User
                                      last edited by

                                      This picture might show my intentions a bit better (WIP)

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                                      • fcwiltundefined
                                        fcwilt
                                        last edited by

                                        @Zesty_Lykle:

                                        OK, after some work, and a nice discussion with Doug, I have wrapped up the design for the adapter.

                                        So the Shapeways model is now complete and ready.
                                        The Thingiverse page holds the 2 models, the legless one and the legged one. (If you look at the adapter standing there you will realise why I am calling it the Grand Piano adapter)

                                        Shapeways http://shpws.me/OPLc
                                        Thingiverse https://www.thingiverse.com/thing:2453322

                                        I download the ZIP file from Thingiverse and the STL files for the "Smart Effector" will not open in Windows 10 3D Builder

                                        The STL file for the "PCB Effector" will open.

                                        Is that correct? Or is there something wrong with either the files or Windows 10 3D Builder.

                                        Thanks.

                                        Frederick

                                        Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

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                                        • eddygaraundefined
                                          eddygara
                                          last edited by

                                          Do you ever plan to release a version compatible with the e3d chimeria hot end??

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                                          • dc42undefined
                                            dc42 administrators
                                            last edited by

                                            Not sure. The Diamond hot end is another one we might consider supporting.

                                            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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