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    E3D V6 Thermistor inaccurate reason new Firmware?

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    • AS-3D Druckundefined
      AS-3D Druck
      last edited by

      Hi Guys,

      i'am not quiet shure what i exactly changed, but the Thermistor of my e3D V6 https://e3d-online.com/thermistor-cartridge got really big Problems
      to get to Temparture. (260°C)
      I belive before i updated my Firmware this wasn't the Case.

      I checked my Thermistor Settings and commented out the old Setting and tryed this Settings:

      [[language]]
      M305 P1 T100000 B4267 C0 R4700 ; Set thermistor + ADC parameters for heater 1 Nozzle
      ;M305 P1 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 1 Nozzle
      
      ```The Values for the [http://reprap.org/wiki/Thermistor#ATC_Semitec_104GT-2](http://reprap.org/wiki/Thermistor#ATC_Semitec_104GT-2)
      
      The new Values should work and are the right one right?

      Best regards
      AS-3D Druck / Andre

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      • dc42undefined
        dc42 administrators
        last edited by

        The values you have commented out should give good results, assuming the thermistor you are using has the same characteristics as the 104GT-2. I have just set those parameters on a Duet and connected a 100 ohm resistor in place of the thermistor to test the reading from 1.19 firmware. The reading I get (286.4C) agrees well with the resistance vs. temperature table at http://www.atcsemitec.co.uk/gt-2-glass-thermistors.html.

        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

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        • AS-3D Druckundefined
          AS-3D Druck
          last edited by

          Ok, thx i will try something today and hope that works. (Replace my PSU for the DuetWifi that got only 4A on 12V)

          Best regards
          AS-3D Druck / Andre

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