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    Thermistor help on new duex5 upgrade.

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    • JPS0284undefined
      JPS0284
      last edited by

      I just installed a new Duex5 and I seem to have everything working other than getting my tool thermistors reading correctly. Long story short one of the screws from the duet fell on the garage floor somewhere so I decided to move the tool heaters to E2 - E3 on the Duex5 till I can mag sweep the floor. Im running a BMG X2-M with 2 mosquito liquids, tool1 on duex.etemp2 is an high temp Slice eng. thermistor and the other is an amazon special "TD 500 thermistor" but I think its a K500 thermocouple which I assume I'm going to need the daughterboard. Both are registering -273.1 C

      ; Tool1 Heater
      M308 S1 P"duex.e2temp" Y"thermistor" T500000 B4723 C1.19622e-7 ; configure sensor 1 as thermistor on pin duex.e2temp
      M950 H1 C"duex.e2heat" T1 ; create nozzle heater output on duex.e2heat and map it to sensor 1
      M143 H1 S280 ; set temperature limit for heater 1 to 280C
      M307 H1 B0 S1.00 ; disable bang-bang mode for the nozzle heater and set PWM limit

      ; Tool2 Heater
      M308 S2 P"duex.e3temp" Y"thermistor" T100000 B4138 ; configure sensor 2 as thermistor on pin duex.e3temp
      M950 H2 C"duex.e3heat" T2 ; create nozzle heater output on duex.e3heat and map it to sensor 2
      M143 H2 S280 ; set temperature limit for heater 2 to 280C
      M307 H2 B0 S1.00

      ; Tools
      M563 P0 S"Tool 1" D0 H1 ; define tool 0
      G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
      G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C
      M143 H1 P0 S450 A2 ; switch off heater 1 temporarily if it exceeds 450°C
      M143 H1 P1 S450 A0 ; raise a heater fault if it exceeds 450°C
      M563 P1 S"Tool 2" D0 H2 ; define tool 1
      G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets
      G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C
      M143 H2 P0 S450 A2 ; switch off heater 1 temporarily if it exceeds 450°C
      M143 H2 P1 S450 A0 ; raise a heater fault if it exceeds 450°C

      Any help with this would be greatly appreciated thanks.

      Phaedruxundefined 1 Reply Last reply Reply Quote 0
      • Phaedruxundefined
        Phaedrux Moderator @JPS0284
        last edited by

        @JPS0284 said in Thermistor help on new duex5 upgrade.:

        Both are registering -273.1 C

        Usually -273 indicates open circuit connection.

        If it's a thermocouple yes you would need a daughterboard.

        Z-Bot CoreXY Build | Thingiverse Profile

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        • JPS0284undefined
          JPS0284
          last edited by

          that's what I thought, I olm'ed out both thermistor/thermocouple and Im getting good readings for both so I'm sure its has more to do with my lack of knowledge for the Duex than anything.

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          • JPS0284undefined
            JPS0284
            last edited by

            Solved, put an end on a old thermistor and its registering temp on the Duex board, time to tear it all back apart again! ::facetious::YAY!

            1 Reply Last reply Reply Quote 1
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