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    Which Crimpers for Duet 2

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    Duet Hardware and wiring
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    • Rushmere3Dundefined
      Rushmere3D @Stephen6309
      last edited by

      @stephen6309 said in Which Crimpers for Duet 2:

      @arnold_r_clark I use two different ones, depending on the wire/crimp size:
      https://www.amazon.com/gp/product/B07G98DLB8 and https://www.amazon.com/gp/product/B078WNZ9FW

      I crimp the wire then the strain relief.

      Another vote for these, been rewiring a printer this weekend with this very tool, works fantastic.

      Follow my adventures in 3D Printing, laser cutting and electronics. https://linktr.ee/Rushmere3D

      A Former User? 1 Reply Last reply Reply Quote 0
      • A Former User?
        A Former User @Rushmere3D
        last edited by

        This post is deleted!
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        • mendenmhundefined
          mendenmh @zapta
          last edited by

          @zapta I'll vote with this crimper, too. I expected a fairly cheaply built tool, considering its price. I was very surprised that it is heavily constructed, with non-wobbly joints and very well fitting jaws. I now use it not only for work on my printer, but I take it into my real job for crimping there. It is better than most of the ones we have in a drawer.
          The one thing it lacks is the little blade that drops into a slot in the connector that helps align the connector at exactly the right point. This is a feature of high-end, commercial crimpers. If I were crimping all day, every day, that would make work faster. However, for my purposes, I just look very closely at where the connecter is in the crimping jaw, make sure it is right, and crimp. I probably only have a few percent rate of bad crimps where the connector gets bent by the jaws due to not being seated correctly. These crimps are physically obviously bad, so it is easy to redo. I have had zero cases where the tool has made an apparently good crimp which was loose. I always torture connecters after crimping to make sure they don't pull apart.

          zaptaundefined 1 Reply Last reply Reply Quote 0
          • zaptaundefined
            zapta @mendenmh
            last edited by

            @mendenmh said in Which Crimpers for Duet 2:

            I was very surprised that it is heavily constructed, with non-wobbly joints and very well fitting jaws.

            They claim that the jaws are made using EDM ('wire electrode') process which explains the their accuracy.

            https://iwiss.com/products/sn-01bm-d-sub-terminal-crimping-tool-awg28-20/

            airscapesundefined 1 Reply Last reply Reply Quote 0
            • airscapesundefined
              airscapes @zapta
              last edited by

              Wow, wish I could get this many replies to my firmware post.. 🙂

              zaptaundefined Phaedruxundefined 2 Replies Last reply Reply Quote 0
              • zaptaundefined
                zapta @airscapes
                last edited by zapta

                @airscapes said in Which Crimpers for Duet 2:

                Wow, wish I could get this many replies to my firmware post..

                Try posting your firmware questions in a crimpers forum.

                1 Reply Last reply Reply Quote 2
                • rjenkinsgbundefined
                  rjenkinsgb @hayseed_byte
                  last edited by

                  @hayseed_byte said in Which Crimpers for Duet 2:

                  I'm going to have to go ahead and disagree with that completely.

                  That is of course your right.

                  I'm just working from near 50 years of designing and repairing industrial control systems, and seeing a significant number of poor connections and long-term failures with that general type of small crimp.

                  The fact is that if you can ever pull a wire out after crimping without it ripping strands, it's not truly crimped and can fail eventually.

                  https://smcontact.eu/good-crimp-connection/

                  Anyway, each to their own it's only information!

                  Robert J.

                  Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.

                  hayseed_byteundefined 1 Reply Last reply Reply Quote 0
                  • Th0mpyundefined
                    Th0mpy
                    last edited by

                    Just to add my toys here. I use this one and it's great even for the small crimp on the 1LC toolboard: https://www.amazon.com/gp/product/B00IWD9XT6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

                    Highly recommend.

                    Usually the team that scores the most points wins the game.

                    1 Reply Last reply Reply Quote 0
                    • Phaedruxundefined
                      Phaedrux Moderator @airscapes
                      last edited by

                      @airscapes said in Which Crimpers for Duet 2:

                      Wow, wish I could get this many replies to my firmware post.. 🙂

                      which post is that?

                      Z-Bot CoreXY Build | Thingiverse Profile

                      1 Reply Last reply Reply Quote 0
                      • zaptaundefined
                        zapta @rjenkinsgb
                        last edited by

                        @rjenkinsgb said in Which Crimpers for Duet 2:

                        I do not consider any tool other than the connector manufacturers own exact type to be a valid "crimp"

                        Those tools tend to be very expensive and non practical for most makers.

                        E.g.

                        https://www.digikey.com/en/products/detail/molex/0638118200/1869996?s=N4IgTCBcDaIGwGYAcBGFSwAZMgLoF8g

                        Good engineering is about finding a good compromise between conflicting goals.

                        1 Reply Last reply Reply Quote 0
                        • hayseed_byteundefined
                          hayseed_byte @rjenkinsgb
                          last edited by

                          @rjenkinsgb said in Which Crimpers for Duet 2:

                          That is of course your right.
                          I'm just working from near 50 years of designing and repairing industrial control systems, and seeing a significant number of poor connections and long-term failures with that general type of small crimp.
                          The fact is that if you can ever pull a wire out after crimping without it ripping strands, it's not truly crimped and can fail eventually.
                          https://smcontact.eu/good-crimp-connection/
                          Anyway, each to their own it's only information!

                          You're telling me that you repair industrial control systems in the field by using the wrong crimpers and adding a dab of solder to a crimped connection?

                          https://wildbot.me/wildbot
                          Gcode Definitions for VSCode extension: https://github.com/hayseedbyte/rrf-gcode-definitions

                          rjenkinsgbundefined 1 Reply Last reply Reply Quote 0
                          • rjenkinsgbundefined
                            rjenkinsgb @hayseed_byte
                            last edited by rjenkinsgb

                            @hayseed_byte said in Which Crimpers for Duet 2:

                            and adding a dab of solder to a crimped connection
                            Your wording, not mine!

                            I never use small crimp connectors in anything we produce, and for a repair, if no equivalent solder connector is available, then properly soldering a wire to a crimp insert is infinitely better than leaving it as a crimp alone, when the correct manufacturers tooling is not available.

                            There is no quality or reliability problem with soldered joints as long as they are not under mechanical stress.

                            Small crimp connectors exist because they are faster and cheaper in mass production than soldering.

                            Soldering is technically better, for small wires:-
                            https://www.osti.gov/servlets/purl/1288669

                            If you want to only crimp, then the only way to be 100% sure of it being reliable is to buy something like this for each different make and series of connector - which is ludicrously impractical for servicing multiple different makes of equipment.

                            For Molex alone, there are around FIFTY different specific crimp tools for different connector and pin/insert types.

                            https://uk.rs-online.com/web/p/crimp-tools/6634246

                            As I said before, how you do them is your choice, it's only information, no compulsion.
                            I'm done.

                            Robert J.

                            Printers: Overlord pro, Kossel XL+ with Duet 6HC and "Frankentron", TronXY X5SA Pro converted to E3D toolchange with Duet 6HC and 1LC toolboards.

                            hayseed_byteundefined 1 Reply Last reply Reply Quote 1
                            • hayseed_byteundefined
                              hayseed_byte @rjenkinsgb
                              last edited by

                              @rjenkinsgb

                              @rjenkinsgb said in Which Crimpers for Duet 2:

                              Soldering is technically better, for small wires:-
                              https://www.osti.gov/servlets/purl/1288669

                              That conference in your link seems to be talking about crimp connectors that were faulty because they were made out of the wrong material.

                              The connector representing the 2005 (good) lot showed
                              excellent bonding along the pin-crimp sleeve interface.
                              

                              It does mention that soldering to solder lugs is better than crimping a pin improperly. It doesn't mention soldering a crimped connection.

                              I'm just trying to learn. I'm not an engineer. I don't work in aerospace or nuclear security so I'm not invited to conferences like you linked there. I have a mere fifteen years experience in industrial maintenance, nothing like your fifty years. But what I've seen is trying to solder a crimped connection leads to solder wicking up the wire making it stiff and causing to it break. It also damages the insulation and I think the bottom set of "wings" of the Molex KK pins are meant to hold the insulation to provide some strain relief. But I could be wrong.

                              https://wildbot.me/wildbot
                              Gcode Definitions for VSCode extension: https://github.com/hayseedbyte/rrf-gcode-definitions

                              zaptaundefined 1 Reply Last reply Reply Quote 0
                              • zaptaundefined
                                zapta @hayseed_byte
                                last edited by

                                Are there tools that crimp and solder in one press? If not, it's a business opportunity. 🙂

                                iff7378undefined 1 Reply Last reply Reply Quote 0
                                • iff7378undefined
                                  iff7378 @zapta
                                  last edited by

                                  @zapta Yes kind of - some connectors are ultrasonic welded.

                                  Most definitely not something available to the hobbyist nor necessary for a 3D printer.

                                  Pretty cool process nonetheless:

                                  http://www.bluejeanscable.com/articles/ultrasonic-welding.htm

                                  1 Reply Last reply Reply Quote 0
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