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    Slicer shuts off hotend fan.

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    • luka1952undefined
      luka1952
      last edited by

      Hi, I have a problem with my Hevo(duet wifi, Duet Web Control 3.3.0)
      My hotend fan is configured as thermostatic and works as it should, but when I start printing the slicer g-code shuts the fan off. I use cura or Prusa slicers but both are doing the same thing.
      This is my config.g
      ; Fans
      M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
      M106 P0 C"Part Cooling Fan" S0 H-1 ; set fan 0 value. Thermostatic control is turned off
      M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
      M106 P1 C"Hotend Fan" S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on

      ; Tools
      M563 P0 S"Sherpa/Dragon" D0 H1 F1 ; 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

      Cura and Prusa are using M107 in the code with no parameters which shuts off the hotend fan. I've set cooling fan number in Cura to 0.

      What I'm doing wrong? Because I can't fix it.

      fcwiltundefined Gixxerfastundefined 2 Replies Last reply Reply Quote 0
      • fcwiltundefined
        fcwilt @luka1952
        last edited by

        @luka1952

        Hi,

        I assume you verified that fans are connected to the correct connectors on the board?

        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

        luka1952undefined 1 Reply Last reply Reply Quote 0
        • luka1952undefined
          luka1952 @fcwilt
          last edited by

          @fcwilt said in Slicer shuts off hotend fan.:

          @luka1952

          Hi,

          I assume you verified that fans are connected to the correct connectors on the board?

          Frederick

          When I turn on the hotend fan in the duet web control it turns the right fan on. So I assume its ok.

          GeneRisiundefined fcwiltundefined 2 Replies Last reply Reply Quote 0
          • GeneRisiundefined
            GeneRisi @luka1952
            last edited by

            @luka1952 I think you might have the fans swapped. The hotend fan (which cools the hotend) does not have a control in the web interface. The print cooling fan, which cools the filament just after it has extruded, can be controlled from web interface.

            luka1952undefined 1 Reply Last reply Reply Quote 1
            • fcwiltundefined
              fcwilt @luka1952
              last edited by

              @luka1952 said in Slicer shuts off hotend fan.:

              @fcwilt said in Slicer shuts off hotend fan.:

              @luka1952

              Hi,

              I assume you verified that fans are connected to the correct connectors on the board?

              Frederick

              When I turn on the hotend fan in the duet web control it turns the right fan on. So I assume its ok.

              The hotend fan should not be showing in the duet web control. Only the part cooling fan should be visible.

              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

              1 Reply Last reply Reply Quote 0
              • luka1952undefined
                luka1952 @GeneRisi
                last edited by

                @generisi
                I know it has no control. I just turn on the hotend and when the temp. riches 45deg. it turns on.

                GeneRisiundefined 1 Reply Last reply Reply Quote 0
                • GeneRisiundefined
                  GeneRisi @luka1952
                  last edited by

                  @luka1952 I am confused now. You told @fcwilt "When I turn on the hotend fan in the duet web control it turns the right fan on. So I assume its ok."

                  luka1952undefined 1 Reply Last reply Reply Quote 0
                  • luka1952undefined
                    luka1952 @GeneRisi
                    last edited by

                    @generisi Sorry my mistake.

                    To be clear:
                    I have only one slider in duet web control and it is part cooling fan.
                    When I use it part cooling fan is working.
                    When I set temp. higher the 45 deg. on my hotend the hotend fan kicks in.

                    fcwiltundefined 1 Reply Last reply Reply Quote 1
                    • Gixxerfastundefined
                      Gixxerfast @luka1952
                      last edited by

                      @luka1952 said in Slicer shuts off hotend fan.:

                      M563 P0 S"Sherpa/Dragon" D0 H1 F1 ; define tool 0

                      Is this correct?

                      M563 P0 S"Sherpa/Dragon" D0 H1 F1 ; define tool 0

                      I'm assuming you should have F0 instead ?

                      Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                      Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                      Ender 3 Pro with BTT SKR-2 + RRF

                      luka1952undefined 1 Reply Last reply Reply Quote 1
                      • luka1952undefined
                        luka1952 @Gixxerfast
                        last edited by

                        @gixxerfast
                        I've just change it.
                        Before it was F0 but I've got the same problem.

                        GeneRisiundefined Gixxerfastundefined 2 Replies Last reply Reply Quote 0
                        • GeneRisiundefined
                          GeneRisi @luka1952
                          last edited by

                          @luka1952 Your config has this
                          M106 P1 C"Hotend Fan" S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on
                          I think you either want to say S255 or S1.0 . S1 looks to the firmware like you want the fan set to 1 out of 255.

                          fcwiltundefined 1 Reply Last reply Reply Quote 0
                          • Gixxerfastundefined
                            Gixxerfast @luka1952
                            last edited by Gixxerfast

                            @luka1952 It should be the part cooling fan associated with the tool so it should be F0 (or nothing at all).

                            Also you should (as far as I know) end your config by selecting the tool with a:

                            T0

                            Also try removing the S"Sherpa/Dragon" (just to test)

                            And the above that GeneRisi wrote 🙂 ^

                            Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                            Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                            Ender 3 Pro with BTT SKR-2 + RRF

                            1 Reply Last reply Reply Quote 0
                            • luka1952undefined
                              luka1952
                              last edited by

                              Ok, thanks I'll try to change it and see what happens

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

                                @generisi said in Slicer shuts off hotend fan.:

                                I think you either want to say S255 or S1.0 . S1 looks to the firmware like you want the fan set to 1 out of 255.

                                That's what the docs say. However testing reveals that, in firmware 3.3 at least, S1 get special treatment and is the same as S1.0

                                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

                                1 Reply Last reply Reply Quote 0
                                • fcwiltundefined
                                  fcwilt @luka1952
                                  last edited by

                                  @luka1952

                                  Did you look at the slicer code and verify the M106/M107 commands have no parameter?

                                  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

                                  luka1952undefined 1 Reply Last reply Reply Quote 0
                                  • luka1952undefined
                                    luka1952 @fcwilt
                                    last edited by

                                    @fcwilt
                                    Yes,it has no parameter.

                                    1 Reply Last reply Reply Quote 1
                                    • Gixxerfastundefined
                                      Gixxerfast
                                      last edited by Gixxerfast

                                      Could you post your latest config.g and a picture from DWC where one can see the fans?

                                      So just to recap, before you run the gcode from the slicer the hotend fan (Fan 1) is running and directly when you start the slicer gcode, fan 1 stops?

                                      And, when you move the tool fan slider in DWC the part cooling fan starts and stops?

                                      Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                                      Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                                      Ender 3 Pro with BTT SKR-2 + RRF

                                      1 Reply Last reply Reply Quote 0
                                      • luka1952undefined
                                        luka1952
                                        last edited by

                                        Hi everyone.
                                        After making suggested changes everything is working correctly now. Thanks a lot 🙂

                                        1 Reply Last reply Reply Quote 2
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