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    Thermistor at 2000c

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    • Bewarenundefined
      Bewaren
      last edited by

      Strange, it's completely changed the way the web interface looks, however it says the firmware version is still the same @Phaedrux

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      • Bewarenundefined
        Bewaren
        last edited by

        I've managed to get the firmware updated, just had to reinstall it. However the thermistors now show a temperature of '-273.1 C'. @Phaedrux

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        • Phaedruxundefined
          Phaedrux Moderator @Bewaren
          last edited by

          The web interface was updated along with the firmware.

          When you send M98 Pconfig.g now do you get any errors?

          Z-Bot CoreXY Build | Thingiverse Profile

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          • Bewarenundefined
            Bewaren @Phaedrux
            last edited by

            @Phaedrux

            HTTP is enabled on port 80
            FTP is enabled on port 21
            TELNET is enabled on port 23
            Warning: Heater 0 appears to be over-powered. If left on at full power, its temperature is predicted to reach 365C

            This is what I am getting now, I am also struggling with the smart effector wiring for the thermistor, I am using a PT100 Thermistor, 2 pins but I am trying to figure out which pins I need to connect it too.

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              If you're using a PT100 your config is incorrect.

              M308 S1 P"e0temp" Y"thermistor" T100000 B4138      ; configure sensor 1 as thermistor on pin e0temp
              M950 H1 C"e0heat" T1                               ; create nozzle heater output on e0heat and map it to sensor 1
              M307 H1 B0 S1.00                                   ; disable bang-bang mode for heater  and set PWM limit
              

              This is for a thermistor. In the configurator you'd need to choose which channel you have the PT100 connected to.

              Do you have the PT100 daughter board?

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              • Bewarenundefined
                Bewaren @Phaedrux
                last edited by

                @Phaedrux I do not no, I am using the thermistor provided with the E3D Hotend for the smart effector, I believe it is a PT100, correct? It was a while back since I bought it.

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                • Bewarenundefined
                  Bewaren @Phaedrux
                  last edited by

                  @Phaedrux I have pins T3 - T4 wired up, is that correct?

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                  • Phaedruxundefined
                    Phaedrux Moderator
                    last edited by

                    I'm not sure what you bought. 😀

                    To use a pt100 you'll need the pt100 daughter board.

                    Z-Bot CoreXY Build | Thingiverse Profile

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                    • Phaedruxundefined
                      Phaedrux Moderator
                      last edited by

                      Can you post some photos?

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                      • Bewarenundefined
                        Bewaren @Phaedrux
                        last edited by

                        @Phaedrux alt text20200616_005347.jpg 20200616_005354.jpg

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                        • Bewarenundefined
                          Bewaren @Phaedrux
                          last edited by

                          @Phaedrux Hope these help

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                          • Bewarenundefined
                            Bewaren
                            last edited by

                            The wiring it a little messy at the moment, please excuse it xD

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                            • Phaedruxundefined
                              Phaedrux Moderator
                              last edited by

                              Well we need to verify what sensor you are actually using. Is it a thermistor or PT100. If it's a PT100 you will need the daughter board before you can use it.

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                              • Bewarenundefined
                                Bewaren @Phaedrux
                                last edited by

                                @Phaedrux 20200616_010917.jpg

                                This is the thermistors or PT100 I am using, not sure if it helps identify it

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                                • Phaedruxundefined
                                  Phaedrux Moderator
                                  last edited by Phaedrux

                                  I believe the E3D PT100s use red wires and the thermistors are blue. But I'm not sure if that's a hard rule, but I think that's generally the case.

                                  https://e3d-online.com/collections/printer-parts-electrical/products/thermistor-cartridge
                                  https://e3d-online.com/collections/printer-parts-electrical/products/pt100-temperature-sensor

                                  You should try to verify with your invoice or email confirmation from your purchase to be sure.

                                  You'll need a daughter board to be able to read the PT100.
                                  https://duet3d.dozuki.com/Wiki/Connecting_PT100_temperature_sensors

                                  https://e3d-online.com/products/pt100-daughterboard-for-duet-wifi?_pos=4&_sid=8859bba4b&_ss=r

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                                  • Bewarenundefined
                                    Bewaren
                                    last edited by

                                    Alright I can confirm it's a PT100, found the invoice. I will get one ordered asap.

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                                    • Phaedruxundefined
                                      Phaedrux Moderator
                                      last edited by

                                      Glad we got that sorted out. Once you have the daughterboard installed and connected you'll need to make a change to your temp sensor config to point to the PT100.

                                      M308 S1 P"spi.cs1" Y"rtd-max31865"             ; configure sensor 1 as thermocouple via CS pin spi.cs1
                                      M950 H1 C"e0heat" T1                           ; create nozzle heater output on e0heat and map it to sensor 1
                                      M307 H1 B0 S1.00                               ; disable bang-bang mode for heater  and set PWM limit
                                      

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                                      • A Former User?
                                        A Former User @Phaedrux
                                        last edited by

                                        You should try to verify with your invoice or email confirmation from your purchase to be sure.

                                        suppose its still possible they could have shipped the wrong one, to be sure use a multimeter and measure the resistance at room temperature; PT100 should be about 100 ohm, and PT1000 should be about 1000 ohm.

                                        (Techincally PT100 is 100 ohm at 0°C and closer to 110 at room temperature, and 1100 ohm for PT1000)

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                                        • Bewarenundefined
                                          Bewaren @A Former User
                                          last edited by

                                          @bearer comes back at 109 ohm

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                                          • sg2020undefined
                                            sg2020 @Phaedrux
                                            last edited by

                                            @phaedrux I was also trying to get my E3D PT100 sensor to work and your code helped. Could you explain why this works? Why does it need p"spi.cs1"? why is it configuring the sensor 1 as a thermocouple?

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