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    AM8 config issues - cannot home any axis

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    Duet Hardware and wiring
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    • Thoemseundefined
      Thoemse
      last edited by Thoemse

      Thank you. I will try that.
      I can't use thos commands. Insufficient axis homed. Only works after homing I guess? I managed to fix it now. All axis homing against endstop fine.

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      • Thoemseundefined
        Thoemse
        last edited by Thoemse

        Closing in to get it running. Axis Home. Endstops work. Fans work. Bed heats.
        Only the hotend keeps bugging me.

        It's a 3d Freunde e3d Full Metal Hotend.

        I get the error: Heater 1 fault (T0) - 2000°C

        I tried the original E3D thermistor values. I tried the values that work for the 3D Freunde Hotend in Marlin (B 3950) but all I get is a heater fault.

        The thermistor and heater are wired to E0.

        Heatbed works fine. Pid tuning it right now.

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        • Vetiundefined
          Veti
          last edited by

          before you try to heat the hotend see if the thermistor reads room temperature and changes by externaly heating it (hand body temperature)

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          • Thoemseundefined
            Thoemse
            last edited by

            Thermistor always shows 2000 C.

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            • Vetiundefined
              Veti
              last edited by

              check that you have connected it to the correct plug, then measure the resistance of the thermistor using an ohm meter.

              Thoemseundefined 1 Reply Last reply Reply Quote 0
              • Thoemseundefined
                Thoemse @Veti
                last edited by

                @veti
                Thanks. Yep the Thermistor is dead out of the box. Plugged in a different one and it reads room temp.
                I got some teething issues on this one.
                Thanks.

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                • Vetiundefined
                  Veti
                  last edited by

                  cut the cable at the crimp contact, and measure again. it might just be a bad crimp job.

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                  • Thoemseundefined
                    Thoemse
                    last edited by Thoemse

                    Apparently the thermistor was screwed in too hard. The set screw put too much pressure on the wiring. It works now.
                    Pid tuning the hotend now. Weeee!
                    Sure had some hurdles on the way on this one but the DuetWifi really grows on me. I love the webinterface and the fact I can modify the config via interface - that's brilliant.

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                    • Thoemseundefined
                      Thoemse
                      last edited by Thoemse

                      Thanks to all of you my carthesian is printing now. Currently tuning acceleration and jerk. I also need to center the pritnbed still as you can see.

                      Making good progress though. If this goes will I might upgrade my delta to a Duet too.

                      alt text

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                      • Thoemseundefined
                        Thoemse
                        last edited by Thoemse

                        Last update on this topic.
                        It is dialed in now and it is fantastic.
                        I wont use any other board on any printer from now on.

                        It's a simple cartesian but wow does it print well.
                        alt text

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