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    Weird temperatures displayed with Duet Maestro 1

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    • Biggsisundefined
      Biggsis
      last edited by Biggsis

      Hello,

      I want to upgrade a D-Bot with a Duet Maestro 1 I have here for a while.
      Now the weird thing is, that both (Bed and E3D Hotend) Thermistor Temps are shown as around 9° degrees celsius, although the room temperature is around 22°C.
      If I connect both Thermistors to a Duet Wifi, the readings are correct. Only the Maestro shows the 9°C

      Firmware is 2.05 and the Thermistor Lines are the usual:

      M305 P0 R4700 H0 L0
      M305 P1 R4700 H0 L0

      Anyone has an idea, what is wrong?

      Hypercube Evolution User Group : https://www.facebook.com/groups/Hypercubeevolution/
      Kossel Delta XL / XXL User Group : [https://www.facebook.com/groups/KosselXXL/]

      droftartsundefined 1 Reply Last reply Reply Quote 0
      • droftartsundefined
        droftarts administrators @Biggsis
        last edited by

        @Biggsis Maestro doesn't have the same series resistors as Duet Wifi, so R4700 is wrong. Remove it, as the firmware knows the correct value to put in for the hardware, or change it to R2200.

        I'm assuming you actually have more numbers in your M305 than that, eg something like
        M305 P0 T100000 B4138 R2200

        Otherwise, see https://duet3d.dozuki.com/Wiki/Gcode#Section_M305_Set_temperature_sensor_parameters

        Ian

        Cartesian bed-slinger with Duet 3 Mini 5+ WiFi and 1LC : RRP Fisher Delta v1 with Duet 2 Maestro : TronXY X5S with Duet 3 MB6HC and Roto toolboard

        1 Reply Last reply Reply Quote 0
        • Biggsisundefined
          Biggsis
          last edited by

          You are right, thank you very much. With the correct parameters the readings are now correct.

          Hypercube Evolution User Group : https://www.facebook.com/groups/Hypercubeevolution/
          Kossel Delta XL / XXL User Group : [https://www.facebook.com/groups/KosselXXL/]

          1 Reply Last reply Reply Quote 0
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