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    FW Bug? Heatbreak Fan thermostatic Control issue

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    • fcwiltundefined
      fcwilt @aceycv8
      last edited by

      @aceycv8

      It looks like you have two hotends but only one hotend fan.

      Is that correct?

      Frederick

      Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

      aceycv8undefined 1 Reply Last reply Reply Quote 0
      • aceycv8undefined
        aceycv8 @fcwilt
        last edited by

        @fcwilt
        rep thats correct - using a chimera so 2 hotends

        fcwiltundefined 1 Reply Last reply Reply Quote 0
        • fcwiltundefined
          fcwilt @aceycv8
          last edited by

          @aceycv8 said in FW Bug? Heatbreak Fan thermostatic Control issue:

          @fcwilt
          rep thats correct - using a chimera so 2 hotends

          But only one hotend fan?

          Frederick

          Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

          aceycv8undefined 1 Reply Last reply Reply Quote 0
          • aceycv8undefined
            aceycv8 @fcwilt
            last edited by

            @fcwilt Yep only 1 hotend end

            fcwiltundefined 1 Reply Last reply Reply Quote 0
            • fcwiltundefined
              fcwilt @aceycv8
              last edited by

              @aceycv8 said in FW Bug? Heatbreak Fan thermostatic Control issue:

              @fcwilt Yep only 1 hotend end

              So how do you get one fan to monitor two temp sensors?

              Frederick

              Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

              aceycv8undefined 1 Reply Last reply Reply Quote 0
              • aceycv8undefined
                aceycv8 @fcwilt
                last edited by

                @fcwilt
                i only use Tool 0 first nozzle - and the seoncd is hardly used - multi colour or disovable supports so i only monitor tool 1 first hotend when it reaches 45deg to turn on

                fcwiltundefined 1 Reply Last reply Reply Quote 1
                • fcwiltundefined
                  fcwilt @aceycv8
                  last edited by

                  @aceycv8 said in FW Bug? Heatbreak Fan thermostatic Control issue:

                  @fcwilt
                  i only use Tool 0 first nozzle - and the seoncd is hardly used - multi colour or disovable supports so i only monitor tool 1 first hotend when it reaches 45deg to turn on

                  Thanks.

                  Just FYI it is possible to monitor both heaters with the one fan.

                  You might want to do that for the sake of safety.

                  Frederick

                  Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6

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                  • Phaedruxundefined
                    Phaedrux Moderator
                    last edited by

                    Are you able to control the fan speed if you send M106 P1 S0.5 H-1 ?

                    Z-Bot CoreXY Build | Thingiverse Profile

                    aceycv8undefined 1 Reply Last reply Reply Quote 0
                    • aceycv8undefined
                      aceycv8 @Phaedrux
                      last edited by

                      @phaedrux
                      Thank you very much that is now working fine facepalm i didnt click to try that

                      thank you

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                      • dc42undefined
                        dc42 administrators @aceycv8
                        last edited by dc42

                        @aceycv8 said in FW Bug? Heatbreak Fan thermostatic Control issue:

                        I've upgraded to 3.4.1 however my heatbreak fan will now run at full speed and i can't lower the speed.

                        The M106 S parameter is now ignored when a fan is configured as thermostatic. This is documented in the release notes for one of the releases you upgraded to or skipped. You can still use the maximum PWM parameter to limit the speed in thermostatic mode.

                        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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