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Crimp Tool Engineer PA21 for Duet 3 IO_n ?

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  • undefined
    JuJuDelta
    last edited by 8 Jan 2021, 15:01

    Hi,

    Is this crimp tool Engineer PA21 suitable for the Duet 3 5 way IO_n connectors, specifically the Molex and Wurth crimps

    Crimp pins above:
    Molex 08-50-range
    https://uk.farnell.com/search?st=08-50

    Wurth 61900113722DEC
    https://uk.farnell.com/wurth-elektronik/61900113722dec/contact-2-54mm-crimp-awg28-22/dp/1841425?st=61900113722dec

    I am aware not to mix Molex & Wurth products.

    Or is the PA21 just for the larger 4 way JST Stepper connector ?
    Can you recommend something suitable please (UK & cheap < £50) ?

    Thanks.

    J.

    T3DP3D Kossel XL+, Duet2Wifi, PanelDue 7i, RRF V3.2, Fl3xdrive, SmartEffector, Berd Air annulus, Cura 4.x, PrusaSlicer, RPi WiFi Camera, Heated Chamber

    ? undefined 2 Replies Last reply 9 Jan 2021, 03:25 Reply Quote 0
    • undefined
      Phaedrux Moderator
      last edited by 8 Jan 2021, 22:31

      I haven't used the PA21 myself but maybe this discussion thread might be helpful.

      https://forum.duet3d.com/topic/9852/crimping-tool

      Z-Bot CoreXY Build | Thingiverse Profile

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      • undefined
        weed2all
        last edited by weed2all 1 Sept 2021, 03:01 9 Jan 2021, 02:36

        5 pin Io.n connectors are Molex KK while 4 pin stepper motor connectors are JST VH
        For Molex KK i use engineer PA-09 and engineer PA-20 with great result...I have both crimpers thoug lately i only use PA-20 as i dont remeber where PA-09 is...for the JST VH connectors recommendations is the use of engineer PA-21 with the 2.2 side of jaws for the bare wire side and 2.5 for the insulation side of the wire

        https://www.thingiverse.com/weed2all/designs

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        • ?
          A Former User @JuJuDelta
          last edited by A Former User 1 Sept 2021, 03:42 9 Jan 2021, 03:25

          @JuJuDelta said in Crimp Tool Engineer PA21 for Duet 3 IO_n ?:

          Or is the PA21 just for the larger 4 way JST Stepper connector ?

          Seems the pa21 has dies from 1.6 to 2.5 so that covers everything but ZH/PH for the Duet3 (at this time)

          https://www.engineertools-jp.com/pa092021

          edit: at a closer look there is a height difference between the 1.6mm and 1.9mm wide dies along the pa09/20/21 so for thin wire gauges you might not get a good crimp. quick& dirty solution is to fold the wire back on itself to double up the copper strands

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          • undefined
            zapta @JuJuDelta
            last edited by 9 Jan 2021, 05:16

            @JuJuDelta, this may help https://forum.duet3d.com/topic/20175/new-to-duet3d-and-sigma-conversion?_=1610169155757

            Personally I prefer Amazon B078WNZ9FW over the Engineer models, as it feels more ergonomic.

            For professional quality crimping you want a proper ratchet tool rather than the Engineer style generics.

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            • undefined
              dc42 administrators
              last edited by dc42 1 Sept 2021, 07:46 9 Jan 2021, 07:45

              The PA21 is the tool I recommend for Duet 3 boards. It will crimp both the VH396 connectors used for hot end and for the motors on the high-current boards, and the KK254 connectors used for everything else. I use it all the time.

              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

              1 Reply Last reply Reply Quote 2
              • undefined
                jmshep
                last edited by 9 Jan 2021, 08:43

                I have both ratchet crimpers and an Engineer PA21. Although the PA21 might seem expensive and simple, it is the better of the two. Despite it being a two step process, I get a higher success rate with it.

                A good crimp is very reliable but it is important to use the right cable , good quality connectors and the correct size die, so a bit of research is needed first. Most safety critical electrical / electronic equipment use crimp connectors for reliability but crimping with pliers and adding a blob of solder as advocated by some is not recommended!

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                • undefined
                  JayJay
                  last edited by 9 Jan 2021, 14:35

                  Im an Auto Electrician for my day job, i use the engineer range, i feel the manual tools give me better manual control over the crimp

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                  • undefined
                    JuJuDelta
                    last edited by 9 Jan 2021, 18:55

                    Many thanks to you all for the crimp tool recommendations.

                    I will try the Japanese Engineer PA-21

                    Regards,

                    J.

                    T3DP3D Kossel XL+, Duet2Wifi, PanelDue 7i, RRF V3.2, Fl3xdrive, SmartEffector, Berd Air annulus, Cura 4.x, PrusaSlicer, RPi WiFi Camera, Heated Chamber

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